diff --git a/rules-tests/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector/Fixture/skip_external_non_static_method.php.inc b/rules-tests/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector/Fixture/skip_external_non_static_method.php.inc
new file mode 100644
index 000000000..cdd2901de
--- /dev/null
+++ b/rules-tests/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector/Fixture/skip_external_non_static_method.php.inc
@@ -0,0 +1,17 @@
+<?php
+
+namespace Rector\Symfony\Tests\Symfony61\Rector\Class_\MagicClosureTwigExtensionToNativeMethodsRector\Fixture;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+use Rector\Symfony\Tests\Symfony61\Rector\Class_\MagicClosureTwigExtensionToNativeMethodsRector\Source\ExternalResolverService;
+
+final class SkipExternalNonStaticMethod extends AbstractExtension
+{
+    public function getFunctions(): array
+    {
+        return [
+            new TwigFunction('resolve', [ExternalResolverService::class, 'resolve']),
+        ];
+    }
+}
diff --git a/rules-tests/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector/Source/ExternalResolverService.php b/rules-tests/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector/Source/ExternalResolverService.php
new file mode 100644
index 000000000..5df72fe0e
--- /dev/null
+++ b/rules-tests/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector/Source/ExternalResolverService.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Symfony\Tests\Symfony61\Rector\Class_\MagicClosureTwigExtensionToNativeMethodsRector\Source;
+
+final class ExternalResolverService
+{
+    public function resolve(mixed $value): mixed
+    {
+        return $value;
+    }
+}
diff --git a/rules/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector.php b/rules/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector.php
index 9de7cf62a..0146a9ba9 100644
--- a/rules/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector.php
+++ b/rules/Symfony61/Rector/Class_/MagicClosureTwigExtensionToNativeMethodsRector.php
@@ -6,11 +6,13 @@
 
 use PhpParser\Node;
 use PhpParser\Node\Expr\Array_;
+use PhpParser\Node\Expr\ClassConstFetch;
 use PhpParser\Node\Expr\MethodCall;
 use PhpParser\Node\Stmt\Class_;
 use PhpParser\Node\Stmt\ClassMethod;
 use PhpParser\Node\VariadicPlaceholder;
 use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\ReflectionProvider;
 use PHPStan\Type\ObjectType;
 use Rector\NodeCollector\NodeAnalyzer\ArrayCallableMethodMatcher;
 use Rector\NodeCollector\ValueObject\ArrayCallable;
@@ -31,6 +33,7 @@ final class MagicClosureTwigExtensionToNativeMethodsRector extends AbstractRecto
 {
     public function __construct(
         private readonly ArrayCallableMethodMatcher $arrayCallableMethodMatcher,
+        private readonly ReflectionProvider $reflectionProvider,
     ) {
     }
 
@@ -147,6 +150,10 @@ private function refactorClassMethod(ClassMethod $classMethod, Scope $scope): bo
                 return null;
             }
 
+            if ($this->isNonStaticExternalClassCallable($arrayCallable, $scope)) {
+                return null;
+            }
+
             $hasChanged = true;
 
             return new MethodCall($arrayCallable->getCallerExpr(), $arrayCallable->getMethod(), [
@@ -156,4 +163,25 @@ private function refactorClassMethod(ClassMethod $classMethod, Scope $scope): bo
 
         return $hasChanged;
     }
+
+    private function isNonStaticExternalClassCallable(ArrayCallable $arrayCallable, Scope $scope): bool
+    {
+        if (! $arrayCallable->getCallerExpr() instanceof ClassConstFetch) {
+            return false;
+        }
+
+        $className = $arrayCallable->getClass();
+        if (! $this->reflectionProvider->hasClass($className)) {
+            return false;
+        }
+
+        $classReflection = $this->reflectionProvider->getClass($className);
+        $methodName = $arrayCallable->getMethod();
+
+        if (! $classReflection->hasMethod($methodName)) {
+            return false;
+        }
+
+        return ! $classReflection->getMethod($methodName, $scope)->isStatic();
+    }
 }