اللَّهُمَّ أَنْتَ رَبِّي لَا إِلَٰهَ إِلَّا أَنْتَ، خَلَقْتَنِي وَأَنَا عَبْدُكَ، وَأَنَا عَلَى عَهْدِكَ وَوَعْدِكَ مَا اسْتَطَعْتُ، أَعُوذُ بِكَ مِنْ شَرِّ مَا صَنَعْتُ، أَبُوءُ لَكَ بِنِعْمَتِكَ عَلَيَّ، وَأَبُوءُ 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 bi ni'matika 'alayya, wa abu'u bi dhanbi faghfir li fa innahu la yaghfirudh-dhunuba illa anta
O Allah, You are my Lord. There is no deity but You. You created me and I am Your servant. I uphold Your covenant and promise to the best of my ability. I seek refuge in You from the evil I have done. I acknowledge Your blessings upon me and I acknowledge my sin. So forgive me, for none forgives sins except You.
Recite in the morning and evening - the master of all supplications for forgiveness
The Prophet (PBUH) said: 'Whoever says this during the day with firm conviction and dies that day before evening, will be among the people of Paradise. And whoever says it at night with firm conviction and dies before morning, will be among the people of Paradise.'