كَانُواْ لَا يَتَنَاهَوۡنَ عَن مُّنكَرٖ فَعَلُوهُۚ لَبِئۡسَ مَا كَانُواْ يَفۡعَلُونَ
They used not to forbid one another from the Munkar (wrong, evil-doing, sins, polytheism, disbelief, etc.) which they committed. Vile indeed was what they used to do
Author: Muhammad Taqi Ud Din Al Hilali And Muhammad Muhsin Khan