(28) باب الْحَثِّ عَلَى الْوِتْرِ قَبْلَ النَّوْمِ
It was narrated that Abu Hurairah said:
"My dearest friend advised me (to do) three things: 'To sleep after praying Witr, to fast three days each month, and to pray two rak'ahs of Fajr.'" (ID)
Reference (ID): Sunan an-Nasa'i 1677 (ID)
In-book reference (ID): Book 20, Hadith 80 (ID)
English translation (ID): Vol. 2, Book 20, Hadith 1678 (ID)