سورة As-Saaffaat 37:11

فَٱسْتَفْتِهِمْ أَهُمْ أَشَدُّ خَلْقًا أَم مَّنْ خَلَقْنَآ ۚ إِنَّا خَلَقْنَـٰهُم مِّن طِينٍۢ لَّازِبٍۭ ١١

So ask them ˹O Prophet˺, which is harder to create: them or other marvels of Our creation? Indeed, We created them from a sticky clay