رَبَّنَا ظَلَمْنَآ أَنفُسَنَا وَإِن لَّمْ تَغْفِرْ لَنَا وَتَرْحَمْنَا لَنَكُونَنَّ مِنَ ٱلْخَٰسِرِينَ ﴿٢٣﴾

Transliteration: Rabbana zalamna anfusana wa in lam taghfir lana wa tarhamna lanakunanna minal-khasirin.

Translation: Our Lord! We have wronged ourselves. If thou forgive us not and have not mercy on us, surely we are of the lost!

Source: Quran 7:23 (Surah Al-A'raf)

When to recite

When seeking forgiveness after a sin or mistake.

About this dua

The words of Adam and Hawwa (Eve) after they ate from the tree. Instead of blaming others, they admitted their wrong and turned to Allah — the first repentance in human history, and a model for every believer.

Source and authenticity