ٱلْمَائِدَة : ٧٩

  • كَانُواْ They had been
  • لَا not
  • يَتَنَاهَوۡنَ forbidding each other
  • عَن from
  • مُّنكَرٖ wrongdoing
  • فَعَلُوهُۚ they did [it]
  • لَبِئۡسَ Surely, evil
  • مَا (was) what
  • كَانُواْ they were
  • يَفۡعَلُونَ doing
They used not to prevent one another from wrongdoing that they did. How wretched was that which they were doing.
They did not prevent one another, that is, one would not forbid the other from committing again, any indecency that they committed; verily evil was what they used to do, [verily evil] was this deed of theirs.