Abdur-Razzaq عبد الرزاق بن همام · The Book of the Commencement of the Prayer

When the Messenger of Allah (ﷺ) started to pray, he would say Takbir, then say: "Wajahtu wajhi lilladhi fataras-samawatiwal-arda hanifan wa ma ana minal-mushrikin. Inna salati wa nusuki wa mahyaya wa mamati lillahi rabbil-alamin, la sharika lahu, wa bidhalika umirtu wa ana min al-muslimin. Allahumma! Antal-maliku la ilaha illa ant, ana abduka zalamtu nafsi wa'taraftu bidhanbi faghfirli dhunubi jami'an, la yaghfirudhunuba illa anta, wahdini lihasanil-ahklaqi, la yahdi li ahsaniha illa anta wasrif anni sayy'aha la yasrifu anni sayy'aha illa anta,…

The Messenger of Allah (ﷺ) heard the recitation of Abu Musa and said: He has been given a Mizmar among the Mazamir of the family of Dawud, peace be upon him."