فَاستَفتِهِم أَهُم أَشَدُّ خَلقًا أَم مَن خَلَقنا ۚ إِنّا خَلَقناهُم مِن طينٍ لازِبٍ

Ask them, “Are they more difficult to create, or those We created?” We created them from sticky clay.