Surah Hud, ayah 117

11:117

وَمَا كَانَ رَبُّكَ لِيُهۡلِكَ ٱلۡقُرَىٰ بِظُلۡمٖ وَأَهۡلُهَا مُصۡلِحُونَ ١١٧

Wamā kāna rabbuka liyuhlikal-qurā bizulmin wa ahluhā muslihūn

And your Lord would not have destroyed the cities unjustly while their people were reformers.