((اللَّهُمَّ أَنْتَ رَبِّي لَا إِلَهَ إِلاَّ 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 لاَ يَغْفِرُ الذُّنوبَ إِلاَّ أَنْتَ)).
O Allah, You are my Lord, none has the right to be worshipped except You, You created me and I am Your servant and I abide to Your covenant and promise as best I can, I take refuge in You from the evil of which I have committed. I acknowledge Your favour upon me and I acknowledge my sin, so forgive me, for verily none can forgive sin except You.
Whoever recites this with conviction in the evening and dies during that night shall enter Paradise, and whoever recites it with conviction in the morning and dies during that day shall enter Paradise, Al-Bukhari 7/150. Other reports are in An-Nasa'i and At-Tirmidhi.