once
رَبَّنَا ظَلَمْنَا أَنفُسَنَا وَإِن لَّمْ تَغْفِرْ لَنَا وَتَرْحَمْنَا لَنَكُونَنَّ مِنَ الْخَاسِرِينَ
Meaning
«Our Lord, we have wronged ourselves, and if You do not forgive us and have mercy upon us, we will surely be among the losers»
Source and references
7:23The reference is copied from the edition; separate editorial verification is not complete yet.
Source edition: Supplications from the Quran. Open source ↗