diff --git a/bin/check-before-after-same-fixtures.php b/bin/check-before-after-same-fixtures.php
index 5b4822a6bce..7eb7bb257d9 100644
--- a/bin/check-before-after-same-fixtures.php
+++ b/bin/check-before-after-same-fixtures.php
@@ -41,7 +41,7 @@ public function run(array $testDirectories): int
         }
 
         if ($invalidFixturePaths === []) {
-            $this->symfonyStyle->success('All fixtures are valid');
+            $this->symfonyStyle->success(sprintf('All %d fixtures are valid', count($fixtureFiles)));
             return Command::SUCCESS;
         }
 
diff --git a/config/set/php85.php b/config/set/php85.php
index a3125b37f88..37449b68b95 100644
--- a/config/set/php85.php
+++ b/config/set/php85.php
@@ -15,7 +15,9 @@
 use Rector\Renaming\ValueObject\RenameClassAndConstFetch;
 
 return static function (RectorConfig $rectorConfig): void {
-    $rectorConfig->rules([ArrayFirstLastRector::class, RemoveFinfoBufferContextArgRector::class, NullDebugInfoReturnRector::class]);
+    $rectorConfig->rules(
+        [ArrayFirstLastRector::class, RemoveFinfoBufferContextArgRector::class, NullDebugInfoReturnRector::class]
+    );
 
     $rectorConfig->ruleWithConfiguration(
         RemoveFuncCallArgRector::class,
diff --git a/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/magic_setup_test_assign.php.inc b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/magic_setup_test_assign.php.inc
new file mode 100644
index 00000000000..b168c2536e0
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/magic_setup_test_assign.php.inc
@@ -0,0 +1,40 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Source\SomeDocblockType;
+
+final class MagicSetupTestAssign extends TestCase
+{
+    /**
+     * @var SomeDocblockType
+     */
+    private $someType;
+
+    protected function setUp(): void
+    {
+        $this->someType = $this->create('string');
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Source\SomeDocblockType;
+
+final class MagicSetupTestAssign extends TestCase
+{
+    private \Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Source\SomeDocblockType $someType;
+
+    protected function setUp(): void
+    {
+        $this->someType = $this->create('string');
+    }
+}
+
+?>
diff --git a/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/skip_no_docblock.php.inc b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/skip_no_docblock.php.inc
new file mode 100644
index 00000000000..7e9a8fc62e5
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/skip_no_docblock.php.inc
@@ -0,0 +1,16 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Source\SomeDocblockType;
+
+final class SkipNoDocblock extends TestCase
+{
+    private $someType;
+
+    protected function setUp(): void
+    {
+        $this->someType = $this->create('string');
+    }
+}
diff --git a/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/skip_public_property.php.inc b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/skip_public_property.php.inc
new file mode 100644
index 00000000000..744ed5fd27d
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Fixture/skip_public_property.php.inc
@@ -0,0 +1,19 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+use Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Source\SomeDocblockType;
+
+final class SkipPublicProperty extends TestCase
+{
+    /**
+     * @var SomeDocblockType
+     */
+    public $someType;
+
+    protected function setUp(): void
+    {
+        $this->someType = $this->create('string');
+    }
+}
diff --git a/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Source/SomeDocblockType.php b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Source/SomeDocblockType.php
new file mode 100644
index 00000000000..411046e54a9
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/Source/SomeDocblockType.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\Source;
+
+final class SomeDocblockType
+{
+}
diff --git a/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/TypedPropertyFromDocblockSetUpDefinedRectorTest.php b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/TypedPropertyFromDocblockSetUpDefinedRectorTest.php
new file mode 100644
index 00000000000..7eb69402110
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/TypedPropertyFromDocblockSetUpDefinedRectorTest.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector;
+
+use Iterator;
+use PHPUnit\Framework\Attributes\DataProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class TypedPropertyFromDocblockSetUpDefinedRectorTest extends AbstractRectorTestCase
+{
+    #[DataProvider('provideData')]
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    public static function provideData(): Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/rule_config.php';
+    }
+}
diff --git a/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/config/rule_config.php b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/config/rule_config.php
new file mode 100644
index 00000000000..88c338e2c6a
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector/config/rule_config.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector;
+use Rector\ValueObject\PhpVersionFeature;
+
+return RectorConfig::configure()
+    ->withRules([TypedPropertyFromDocblockSetUpDefinedRector::class])
+    ->withPhpVersion(PhpVersionFeature::TYPED_PROPERTIES);
diff --git a/rules/Php85/Rector/ClassMethod/NullDebugInfoReturnRector.php b/rules/Php85/Rector/ClassMethod/NullDebugInfoReturnRector.php
index e5ed9d260fa..7f42e4d59d8 100644
--- a/rules/Php85/Rector/ClassMethod/NullDebugInfoReturnRector.php
+++ b/rules/Php85/Rector/ClassMethod/NullDebugInfoReturnRector.php
@@ -75,7 +75,10 @@ public function refactor(Node $node): ?Node
         }
 
         $hasChanged = \false;
-        $this->traverseNodesWithCallable((array) $node->stmts, function (Node $node) use (&$hasChanged): int|Return_|null {
+
+        $this->traverseNodesWithCallable((array) $node->stmts, function (Node $node) use (
+            &$hasChanged
+        ): int|Return_|null {
             if ($node instanceof Class_ || $node instanceof Function_ || $node instanceof Closure) {
                 return NodeVisitor::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
             }
diff --git a/rules/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector.php b/rules/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector.php
new file mode 100644
index 00000000000..8e50b591ff6
--- /dev/null
+++ b/rules/TypeDeclaration/Rector/Class_/TypedPropertyFromDocblockSetUpDefinedRector.php
@@ -0,0 +1,172 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\TypeDeclaration\Rector\Class_;
+
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\ClassMethod;
+use PhpParser\Node\Stmt\Property;
+use PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode;
+use PHPStan\Type\MixedType;
+use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfo;
+use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
+use Rector\Comments\NodeDocBlock\DocBlockUpdater;
+use Rector\PHPStanStaticTypeMapper\Enum\TypeKind;
+use Rector\PHPUnit\NodeAnalyzer\TestsNodeAnalyzer;
+use Rector\Rector\AbstractRector;
+use Rector\StaticTypeMapper\StaticTypeMapper;
+use Rector\TypeDeclaration\AlreadyAssignDetector\ConstructorAssignDetector;
+use Rector\ValueObject\MethodName;
+use Rector\ValueObject\PhpVersionFeature;
+use Rector\VersionBonding\Contract\MinPhpVersionInterface;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @see \Rector\Tests\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector\TypedPropertyFromDocblockSetUpDefinedRectorTest
+ */
+final class TypedPropertyFromDocblockSetUpDefinedRector extends AbstractRector implements MinPhpVersionInterface
+{
+    public function __construct(
+        private readonly TestsNodeAnalyzer $testsNodeAnalyzer,
+        private readonly ConstructorAssignDetector $constructorAssignDetector,
+        private readonly PhpDocInfoFactory $phpDocInfoFactory,
+        private readonly StaticTypeMapper $staticTypeMapper,
+        private readonly DocBlockUpdater $docBlockUpdater
+    ) {
+    }
+
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition('Add property type in PHPUnit test from docblock, if defined in setUp() method', [
+            new CodeSample(
+                <<<'CODE_SAMPLE'
+use PHPUnit\Framework\TestCase;
+
+class SomeClass extends TestCase
+{
+    /**
+     * @var \Doctrine\ORM\EntityManagerInterface
+     */
+    private $doctrine;
+
+    protected function setUp(): void
+    {
+        $this->doctrine = $this->container('doctrine.orm.entity_manager');
+    }
+}
+CODE_SAMPLE
+
+                ,
+                <<<'CODE_SAMPLE'
+use PHPUnit\Framework\TestCase;
+
+class SomeClass extends TestCase
+{
+    private \Doctrine\ORM\EntityManagerInterface $doctrine;
+
+    protected function setUp(): void
+    {
+        $this->doctrine = $this->container('doctrine.orm.entity_manager');
+    }
+}
+CODE_SAMPLE
+            ),
+        ]);
+    }
+
+    /**
+     * @return array<class-string<Node>>
+     */
+    public function getNodeTypes(): array
+    {
+        return [Class_::class];
+    }
+
+    /**
+     * @param Class_ $node
+     */
+    public function refactor(Node $node): ?Node
+    {
+        if (! $this->testsNodeAnalyzer->isInTestClass($node)) {
+            return null;
+        }
+
+        // nothing useful here
+        $setUpClassMethod = $node->getMethod(MethodName::SET_UP);
+        if (! $setUpClassMethod instanceof ClassMethod) {
+            return null;
+        }
+
+        $hasChanged = false;
+
+        foreach ($node->getProperties() as $property) {
+            // already known type
+            if ($property->type instanceof Node) {
+                continue;
+            }
+
+            // some magic might be going on
+            if ($property->isStatic()) {
+                continue;
+            }
+
+            if (! $property->isPrivate()) {
+                continue;
+            }
+
+            // exactly one property
+            if (count($property->props) !== 1) {
+                continue;
+            }
+
+            $propertyName = $property->props[0]->name->toString();
+            if (! $this->constructorAssignDetector->isPropertyAssigned($node, $propertyName)) {
+                continue;
+            }
+
+            $propertyPhpDocInfo = $this->phpDocInfoFactory->createFromNode($property);
+            if (! $propertyPhpDocInfo instanceof PhpDocInfo) {
+                continue;
+            }
+
+            $varType = $propertyPhpDocInfo->getVarType();
+            if ($varType instanceof MixedType) {
+                continue;
+            }
+
+            $nativePropertyTypeNode = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode(
+                $varType,
+                TypeKind::PROPERTY
+            );
+            if (! $nativePropertyTypeNode instanceof Node) {
+                continue;
+            }
+
+            // remove var tag
+            $this->removeVarTag($propertyPhpDocInfo, $property);
+
+            $property->type = $nativePropertyTypeNode;
+            $hasChanged = true;
+        }
+
+        if ($hasChanged) {
+            return $node;
+        }
+
+        return null;
+    }
+
+    public function provideMinPhpVersion(): int
+    {
+        return PhpVersionFeature::TYPED_PROPERTIES;
+    }
+
+    private function removeVarTag(PhpDocInfo $propertyPhpDocInfo, Property $property): void
+    {
+        $propertyPhpDocInfo->removeByType(VarTagValueNode::class);
+        $this->docBlockUpdater->updateRefactoredNodeWithPhpDocInfo($property);
+    }
+}
diff --git a/src/Config/Level/TypeDeclarationLevel.php b/src/Config/Level/TypeDeclarationLevel.php
index 1ac9994995b..d1f27f9c087 100644
--- a/src/Config/Level/TypeDeclarationLevel.php
+++ b/src/Config/Level/TypeDeclarationLevel.php
@@ -13,6 +13,7 @@
 use Rector\TypeDeclaration\Rector\Class_\PropertyTypeFromStrictSetterGetterRector;
 use Rector\TypeDeclaration\Rector\Class_\ReturnTypeFromStrictTernaryRector;
 use Rector\TypeDeclaration\Rector\Class_\TypedPropertyFromCreateMockAssignRector;
+use Rector\TypeDeclaration\Rector\Class_\TypedPropertyFromDocblockSetUpDefinedRector;
 use Rector\TypeDeclaration\Rector\Class_\TypedPropertyFromJMSSerializerAttributeTypeRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\AddMethodCallBasedStrictParamTypeRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\AddParamTypeBasedOnPHPUnitDataProviderRector;
@@ -142,5 +143,7 @@ final class TypeDeclarationLevel
 
         // possibly based on docblocks, but also helpful, intentionally last
         AddArrayFunctionClosureParamTypeRector::class,
+
+        TypedPropertyFromDocblockSetUpDefinedRector::class,
     ];
 }
diff --git a/src/ValueObject/PhpVersionFeature.php b/src/ValueObject/PhpVersionFeature.php
index dcdbe245a2f..ec67f7703e1 100644
--- a/src/ValueObject/PhpVersionFeature.php
+++ b/src/ValueObject/PhpVersionFeature.php
@@ -768,12 +768,12 @@ final class PhpVersionFeature
      * @var int
      */
     public const ARRAY_ANY = PhpVersion::PHP_84;
-    
+
     /**
      * @see https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_the_context_parameter_for_finfo_buffer
      * @var int
      */
-    public const DEPRECATE_FINFO_BUFFER_CONTEXT = PhpVersion::PHP_85; 
+    public const DEPRECATE_FINFO_BUFFER_CONTEXT = PhpVersion::PHP_85;
 
     /**
      * @see https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_debuginfo_returning_null