Supplication for the morning and evening #5
اللهم أنت ربي، لا إله إلا أنت ، خلقتني وأنا عبدك، وأنا على عهدك ووعدك ما استطعت أعوذ بك من شر ما صنعت أبوء لك بنعمتك علي، وأبوء بذنبي، فاغفر لي فإنه لا يغفر الذنوب إلا أنت
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 bidhanbi faghfir li, fa innahu la yaghfirudh-dhunuba illa Anta
O Allah! You are my Rabb. There is no true god except You. You have created me, and I am Your slave, and I hold to Your Covenant as far as I can. I seek refuge in You from the evil of what I have done. I acknowledge the favors that You have bestowed upon me, and I confess my sins. Forgive me, for none but You has the power to forgive.
He who supplicates in these terms during the day with firm belief in it and dies on the same day (before the evening), he will be one of the dwellers of Paradise; and if anyone supplicates in these terms during the night with firm belief in it and dies before the morning, he will be one of the dwellers of Paradise.
(Riyadh As Saliheen, Al Bukhari Book 20, Hadith 1875)