Forgiveness
Sahih al-Bukhari 6306
Master supplication for forgiveness
اللَّهُمَّ أَنْتَ رَبِّي لَا إِلَهَ إِلَّا أَنْتَ، خَلَقْتَنِي وَأَنَا عَبْدُكَ، وَأَنَا عَلَى عَهْدِكَ وَوَعْدِكَ مَا اسْتَطَعْتُ، أَعُوذُ بِكَ مِنْ شَرِّ مَا صَنَعْتُ، أَبُوءُ لَكَ بِنِعْمَتِكَ عَلَيَّ، وَأَبُوءُ لَكَ بِذَنْبِي، فَاغْفِرْ لِي، فَإِنَّهُ لَا يَغْفِرُ الذُّنُوبَ إِلَّا أَنْتَ
Allahumma anta Rabbi la ilaha illa anta, khalaqtani wa ana 'abduka, wa ana 'ala 'ahdika wa wa'dika mastata'tu, a'udhu bika min sharri ma sana'tu, abu'u laka bini'matika 'alayya, wa abu'u laka bidhanbi, faghfir li, fa innahu la yaghfirudh-dhunuba illa anta.
O Allah, You are my Lord; there is no god but You. You created me and I am Your servant. I hold to Your covenant and promise as much as I can. I seek refuge in You from the evil I have done. I acknowledge Your favor upon me and I acknowledge my sin, so forgive me, for none forgives sins except You.
Reference: Sahih al-Bukhari 6306.