Surah Al-A'raf (The Heights), Verse 161

وَاِذْ قِیْلَ لَهُمُ اسْكُنُوْا هٰذِهِ الْقَرْیَةَ وَكُلُوْا مِنْهَا حَیْثُ شِئْتُمْ وَقُوْلُوْا حِطَّةٌ وَّادْخُلُوا الْبَابَ سُجَّدًا نَّغْفِرْ لَكُمْ خَطِیْٓـٰٔتِكُمْ سَنَزِیْدُ الْمُحْسِنِیْنَ ۟

Wa iz qeela lahumuskunoo haazihil qaryata wa kuloo minhaa haisu shi'tum wa qooloo hittatunw wadkhulul baaba sujjadan naghfir lakum khateee'aatikum; sanazeedul muhsineen

“And remember it was said to them: "Dwell in this town and eat therein as ye wish, but say the word of humility and enter the gate in a posture of humility: We shall forgive you your faults; We shall increase (the portion of) those who do good."”

Quran 7:161 (Yusuf Ali Translation)