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
رَبَّنَا إِنَّنَا آمَنَّا فَاغْفِرْ لَنَا ذُنُوبَنَا وَقِنَا عَذَابَ النَّارِ
Our Lord, indeed we have believed, so forgive us our sins and protect us from the punishment of the Fire.
Sahihاللَّهُمَّ إِنَّكَ عَفُوٌّ كَرِيمٌ تُحِبُّ الْعَفْوَ فَاعْفُ عَنِّي
O Allah, You are the Pardoner, the Most Generous, and You love to pardon, so pardon 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.
Sahih