‘Ali b. Ali Talib said

When the Messenger of Allah (ﷺ) stood up for prayer, he uttered the takbir (Allah is most great), then said: I have turned my face, breaking with all others, towards Him Who created the heavens and the earth, and I am not a polytheist. My prayer and my devotion, my life and my death belong to Allah, the Lord of the Universe, Who has no partner. That is what I have been commanded, and I am first of Muslims (those who surrender themselves). O Allah, Thou art the King. There is no Allah but Thee. Thou art my Lord and I am Thy servant. I have wronged myself, but I acknowledge my sin, so forgive me all my sins; Thou Who alone canst forgive sins; and guide me to the best qualities. Thou Who alone canst guide to the best of them; and turn me from evil ones. Thou who alone canst turn from evil qualities. I come to serve and please Thee. All good is in Thy Hands, and evil does not pertain to Thee. I seek refuge in Thee and turn to Thee, Who art blessed and exalted. I ask Thy forgiveness and turn to thee in repentance. When he bowed, he said: O Allah, to Thee I bow, in Thee I trust, and to Thee I submit myself. My hearing, my sight, my brain, my bone and my sinews humble themselves before Thee. When he raised his head, he said: Allah listens to him who praises Him. O our lord, and all praises be to Thee in the whole of the heavens and the earth, and what is between them, and in whatever Thou creates afterwards. When he prostrated himself, he said: O Allah, to Thee I prostrate myself, to Thee I trust, and to Thee I submit myself. My face prostrated itself before Him Who created it, fashioned it, and fashioned it in the best shape, and brought forth its hearing and seeing. Blessed is Allah, the best of creators. When he saluted at the end of the prayer, he said: O Allah, forgive me my former and my latter sins, my open and secret sins, my sins in exceeding the limits, and what Thou knowest better than I. Thou art He Who puts forward and puts back. There is deity but Thee.