It wasnarrated that 'Abdul-'Aziz bin Juraij said:
"We asked 'Aishahwhat the Messenger of Allah (ﷺ) used to recite in Witr. She said:'He used to recite: "Glorify the Name of your Lord the MostHigh,"[Al-A'la (87)] in the first Rak'ah, 'Say: "Odisbelievers!'" [Al-Kafirun (109)] in the second Rak'ah, and'Say: Allah is One' in thethird and the Mu'awwidhatain(Chapter 113, 114).'" (IT)
English reference (IT): Vol. 1, Book 5, Hadith 1173 (IT)
Arabic reference (IT): Book 5, Hadith 1229 (IT)