Hadith 1035
Abdullah bin Buraidah narrates from his father that the Prophet Muhammad (peace be upon him) said: "Whoever says: 'O Allah! You are my Lord. There is no deity except You. You created me. I am Your servant. I am, as much as I am able, steadfast upon Your covenant and Your promise. I seek refuge in You from the evil of what I have done. I acknowledge my sin, so forgive me. None forgives sins except You.' (The Prophet Muhammad, peace be upon him, says) If that person dies on that day or that night, he will enter Paradise."