English translation
1419. 'Abdullāh bin Buraidah reported from his father, he said: "I heard the Messenger of Allāh ﷺ saying: 'Witr is a right, so whoever does not pray Witr is not of us. Witr is a right, so whoever does not pray Witr is not of us. Witr is a right, so whoever does not pray Witr is not of us.'" (Da'if)
