﴿ أَلَمْ يَرَوْا۟ كَمْ أَهْلَكْنَا قَبْلَهُم مِّنَ ٱلْقُرُونِ أَنَّهُمْ إِلَيْهِمْ لَا يَرْجِعُونَ ﴾

“Are they not aware of how many a generation We have destroyed before their time, [and] that those [that have perished] will never return to them,”

Please check ayah 36:32 for complete tafsir.