Kanoo la yatanahawna AAan munkarin faAAaloohu labisa ma kanoo yafAAaloona
English
Ahmed Ali
They did not restrain one another from the wicked things they used to do; and vile were the things that they were doing!
79
Tafseer
'Abdullāh Ibn 'Abbās / Muḥammad al-Fīrūzabādī
تفسير : (they restrained not one another) they did not repent (from the wickedness) the evil actions (they did. verily evil was that they used to do!) evil are the sins and transgressions they used to engage in.
Jalāl al-Dīn al-Maḥallī
تفسير : 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.