I say, and with Allah's success: It has been established from the Prophet  in this manner, as narrated by Abu bin Ka'b : "The Messenger of Allah  used to pray the Witr with three rak'ahs, reciting in the first: {Glorify the name of your Lord, the Most High}, in the second: {Say, O disbelievers}, and in the third: {Say, He is Allah, [who is] One}, and he would make the qunut before bowing) in Sunan al-Nasa'i al-Kubra 1: 448, and al-Mujtaba 3: 235. And from al-Hasan , he said: "Abu bin Ka'b used to pray Witr with three rak'ahs and would not greet (salute) except in the third, like the Maghrib" in Musannaf Abd al-Razzaq 3: 25. And from Aisha, may Allah be pleased with her, she said: "The Messenger of Allah  would not greet (salute) in the two rak'ahs of Witr" in Sunan al-Nasa'i al-Kubra 1: 440, and al-Mujtaba 3: 234, and Sharh Ma'ani al-Athar 1: 280, and in another narration: "The Messenger of Allah  would not greet (salute) in the first two rak'ahs of Witr" in al-Mustadrak 1: 446, and it was authenticated. And from Aisha, may Allah be pleased with her, she said: "The Messenger of Allah  would pray Witr with three rak'ahs and would not greet (salute) except at the end of them," and this is "the Witr of the Commander of the Faithful, Umar , from whom the people of Medina took it" in al-Mustadrak 1: 447, and it was authenticated. And from Ibn Mas'ud , he said: "The Witr is three, like the Witr of the day, the Maghrib prayer" in Sharh Ma'ani al-Athar 1: 294, and al-Mu'jam al-Kabir 9: 282, and its chain is authentic, as in I'la al-Sunan 6: 47, and others, and Allah knows best.