5:79 kaanuu laa yatanaahawna 'Am munkarin fa'Aluuh* labi'sa maa kaanuu yaf'Aluun

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Ahmed Raza Khan: Mohammed Aqib Qadri:
They did not restrain one another from the evil they used to do; undoubtedly they used to commit extremely evil deeds.

Yusuf Ali:
Nor did they (usually) forbid one another the iniquities which they committed: evil indeed were the deeds which they did.

Pickthal:
They restrained not one another from the wickedness they did. Verily evil was that they used to do!