فَٱسْتَفْتِهِمْ أَهُمْ أَشَدُّ خَلْقًا أَم مَّنْ خَلَقْنَآ ۚ إِنَّا خَلَقْنَـٰهُم مِّن طِينٍ لَّازِبٍۭ
Fastaftihim ahum ashaddu khalqan am man khalaqnaa; innaa khalaqnaahum min teenil laazib
So ask them: are they harder to create, or the others we have created? Indeed, we created them from sticky clay.