From ʿAlī (may Allah be pleased with him), who said: "The witr is not an absolute obligation like the prescribed prayer, but the Messenger of Allah (peace and blessings be upon him) made it a sunnah. He said: 'Indeed Allah is Witr (One) and loves the witr, so perform the witr, O people of the Qur'an.'" Narrated by Abū Dāwūd and al-Tirmidhī, who said: "A good (ḥasan) hadith."