When he bowed, he said the takbir. When he raised his head, he said, "Allah hears whoever praises Him. Our Lord, to You belongs all praise." Then he prostrated and said the takbir, raised his head and said the takbir, then said the takbir as he stood up from the rakah. Then he said, "By the One in whose hand my soul is, I am the one among you whose prayer most resembles that of the Messenger of Allah ﷺ. This continued to be his prayer until he departed this world."The wording is that of Sawwar.
أخبرنا نصر بن علي وسوار بن عبد الله بن سوار قالا حدثنا عبد الأعلى عن معمر عن الزهري عن أبي بكر بن عبد الرحمن وعن أبي سلمة بن عبد الرحمن أنهما صليا خلف
فلما ركع كبر فلما رفع رأسه قال سمع الله لمن حمده ربنا ولك الحمد ثم سجد وكبر ورفع رأسه وكبر ثم كبر حين قام من الركعة ثم قال والذي نفسي بيده إني لأقربكم شبها برسول الله ﷺ ما زالت هذه صلاته حتى فارق الدنيا واللفظ لسوار
Bukhari narrated it in the Book of Adhan, chapter titled "One says the takbir while bowing down for sujud," hadith no. 803, from the hadith of Zuhri at length, and it is also found in Al-Kubra, hadith no. 742.