Ali ibn Abi Talib · The Book on Al-Witr

"Allah's Messenger came out to us and he said: 'Indeed Allah has assisted you with a Salat that is better for you than red camels: Al-Witr which Allah made for you between the Isha prayer till Al-Fajr has begun."

"Al-Witr is not incumbent like your obligatory prayers, but it is a Sunnah of Allah's Messenger who said: "Indeed Allah is Witr (One), and He loves Al-Witr, so perform Al-Witr O people of the Qur'an."

"Allah's Messenger would perform Al-Witr with three, reciting nine Surah from the Mufassal in them, reciting three Surah in each Rak'ah with Say: "Allah is One." At the end of them."Muhammad bin Sirin said: "They would perform Al-Witr with five, with three, and with one Rak'ah, and they considered all of that to be good."