لَا إِلَٰهَ إِلَّا أَنتَ سُبْحَانَكَ إِنِّي كُنتُ مِنَ الظَّالِمِينَ
La ilaha illa Anta Subhanaka inni kuntu minaz-zalimin
There is no deity except You; exalted are You. Indeed, I have been of the wrongdoers.
This is the du'a of Prophet Yunus (Jonah), peace be upon him, when he was swallowed by the whale and cried out from within the depths of darkness. The Prophet ﷺ said: "No Muslim makes du'a with this supplication regarding any matter except that Allah answers him." It combines tawhid (declaring God's oneness), tasbih (glorification), and confession of wrongdoing.
Related Du'as
أَسْتَغْفِرُ اللَّهَ وَأَتُوبُ إِلَيْهِ
I seek Allah's forgiveness and I repent to Him. (The Prophet ﷺ used to say this more than 100 times a day.)
Sahihرَبَّنَا لَا تُؤَاخِذْنَا إِنْ نَسِينَا أَوْ أَخْطَأْنَا ۚ رَبَّنَا وَلَا تَحْمِلْ عَلَيْنَا إِصْرًا كَمَا حَمَلْتَهُ عَلَى الَّذِينَ مِنْ قَبْلِنَا ۚ رَبَّنَا وَلَا تُحَمِّلْنَا مَا لَا طَاقَةَ لَنَا بِهِ ۖ وَاعْفُ عَنَّا وَاغْفِرْ لَنَا وَارْحَمْنَا ۚ أَنْتَ مَوْلَانَا فَانصُرْنَا عَلَى الْقَوْمِ الْكَافِرِينَ
Our Lord, do not impose blame upon us if we have forgotten or erred. Our Lord, lay not upon us a burden like that which You laid upon those before us. Our Lord, burden us not with that which we have no ability to bear. Pardon us, forgive us, and have mercy upon us. You are our protector, so give us victory over the disbelieving people.
Sahihرَبَّنَا 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 إِنِّي ظَلَمْتُ نَفْسِي ظُلْمًا كَثِيرًا وَلَا يَغْفِرُ الذُّنُوبَ إِلَّا أَنْتَ فَاغْفِرْ لِي مَغْفِرَةً مِّنْ عِندِكَ وَارْحَمْنِي إِنَّكَ أَنتَ الْغَفُورُ الرَّحِيمُ
O Allah, I have wronged myself greatly, and none forgives sins except You. So grant me forgiveness from Yourself and have mercy on me. Indeed, You are the Forgiving, the Most Merciful.
Sahih