Hazrat Buraidahra relates that the Holy Prophetsa said that whosoever recites this prayer, morning or evening, and dies on that day or that night, he will enter heaven:
اَللّٰھُمَّ اَنْتَ رَبِّیْ لاَ اِلٰہَ اِلاَّ اَنْتَ خَلَقْتَنِیْ وَاَنَا عَبْدُکَ وَاَنَا عَلیٰ عَھْدِکَ وَ وَعْدِکَ مَا اسْتَطَعْتُ اَعُوْذُبِکَ مِنْ شَرِّمَا صَنَعْتُ اَبُوْءُ بٍنَعْمَتِکَ وَاَبُؤْءُ بِذَنْبِیْ فَاغْفِرْلِیْ اِنَّہٗ لاَیَغْفِرُ الذُّنُوْبَ اِلاَّ اَنْتَ
“O Allah, You are my Lord; there is none worthy of worship except You. You created me and I am Your servant, and I am steadfast in Your covenant and Your promise to the best of my capability. I seek refuge in You from the evil effects of my deeds. I acknowledge Your blessings and favours. I confess my sins, so You forgive me, as there is none except You who forgives sins.”
(Sunan Abi Dawud, Kitab al-Adab)