Surah Al-Mai'dah (The Spread Table), Verse 79

كَانُوْا لَا یَتَنَاهَوْنَ عَنْ مُّنْكَرٍ فَعَلُوْهُ لَبِئْسَ مَا كَانُوْا یَفْعَلُوْنَ ۟

Kaanoo laa yatanaahawna 'am munkarin fa'alooh; labi'sa maa kaanoo yafa'loon

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

Quran 5:79 (Yusuf Ali Translation)