It was narrated that ‘Ali, may Allah be pleased with him, said: “The Messenger of Allah صلی اللہ علیہ وآلہ وسلم prayed Witr, then he said: ‘people of the Qur’an, pray Witr, for Allah, the Mighty and Sublime, is Witr (One) and loves Al-Witr (the odd numbered).” (Da’if)