Surah 40:21
"Have they not traveled on the earth and seen how the end was for those who were before them? They were stronger than them in power, and in the traces (they left behind) on the earth. Yet God seized them in their sins, and they had no defender against God."
– Have they not traveled on the earth and seen how the end was for those who were before them?
The Quran often asks this question to warn the listener or reader about Allah’s power to judge.
- from The Quran with Christian Commentary: A Guide to Understanding the Scripture of Islam