أَفَلَم يَهدِ لَهُم كَم أَهلَكنا قَبلَهُم مِنَ القُرونِ يَمشونَ في مَساكِنِهِم ۗ إِنَّ في ذٰلِكَ لَآياتٍ لِأُولِي النُّهىٰ

Then, has it not become clear to them how many generations We destroyed before them as they walk among their dwellings? Indeed in that are signs for those of intelligence.