It wasnarrated that Abu Salamah bin `Abdur-Rahman said:
"I asked`Aishah: 'With what did the Prophet (ﷺ) start his voluntaryprayers?' She said: 'He would say: "Allahumma Rabba Jibra'ilwaMika'il wa Israfil, Fatiras-samawati wal-ard, `alimal-ghaybiwash-shahadah, Anta tahkumu baina `ibadika fima kanu fihiyakhtalifun,ihdini lima-khtulifa fihi minal-haqqi bi idhnika,innaka latahdi ilasiratin mustaqim (O Allah, Lord of Jibra'il,Mika'il and Israfil,Creator of the heavens and the earth, Knowerof the unseen and theseen, You judge between Your slaves concerningthat wherein theydiffer. Guide me to the disputed matters of truthby Your Leave, forYou are the One Who guides to the straight Path)."(One of the narrators) `Abdur-Rahman bin `Umar said: "Bear in mind the word Jibra'il with a Hamzah - this is how it was narrated from the Prophet (ﷺ)."
English reference: Vol. 1, Book 5, Hadith 1357
Arabic reference: Book 5, Hadith 1419