Surah Al-Baqarah, ayah 66

2:66

فَجَعَلۡنَٰهَا نَكَٰلٗا لِّمَا بَيۡنَ يَدَيۡهَا وَمَا خَلۡفَهَا وَمَوۡعِظَةٗ لِّلۡمُتَّقِينَ ٦٦

Faja'alnāhā nakālal limā bayna yadayhā wamā khalfahā wamaw'izatal lil-muttaqīn

And We made it a deterrent punishment for those who were present and those who succeeded [them] and a lesson for those who fear Allāh.