(8) باب فِي وَقْتِ الْوِتْرِ
Ibn 'Umar reported the Prophet (ﷺ) as suing:
Make the last of your prayer at night a witr. (ID)
Reference (ID): Sunan Abi Dawud 1438 (ID)
In-book reference (ID): Book 8, Hadith 23 (ID)
English translation (ID): Book 8, Hadith 1433 (ID)