رَبَّنَا ظَلَمْنَا أَنفُسَنَا وَإِن لَّمْ تَغْفِرْ لَنَا وَتَرْحَمْنَا لَنَكُونَنَّ مِنَ الْخَاسِرِينَ
Rabbana dhalamna anfusana wa in lam taghfir lana wa tarhamna lanakunnanna minal-khasirin
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.
This is the du'a of Prophet Adam and Hawwa (Eve), peace be upon them, when they were sent down from Jannah after eating from the forbidden tree. It was the first du'a of repentance ever made by humankind, and Allah accepted it from them.
Related Du'as
اللَّهُمَّ اغْفِرْ لِي وَارْحَمْنِي وَاهْدِنِي وَعَافِنِي وَارْزُقْنِي
O Allah, forgive me, have mercy on me, guide me, grant me well-being, and provide for me.
Sahihرَبَّنَا فَاغْفِرْ لَنَا ذُنُوبَنَا وَكَفِّرْ عَنَّا سَيِّئَاتِنَا وَتَوَفَّنَا مَعَ الْأَبْرَارِ
Our Lord, forgive us our sins and expiate our misdeeds, and cause us to die with the righteous.
Sahihرَبِّ إِنِّي ظَلَمْتُ نَفْسِي فَاغْفِرْ لِي
My Lord, indeed I have wronged myself, so forgive me.
Sahihاللَّهُمَّ اغْفِرْ لِي مَا قَدَّمْتُ وَمَا أَخَّرْتُ وَمَا أَسْرَرْتُ وَمَا أَعْلَنْتُ وَمَا أَسْرَفْتُ وَمَا أَنْتَ أَعْلَمُ بِهِ مِنِّي
O Allah, forgive me for what I have sent ahead and what I have left behind, what I have concealed and what I have made public, where I have transgressed, and what You know about me more than I do.
Sahih