(3) باب إِيقَاظِ النَّبِيِّ صلى الله عليه وسلم أَهْلَهُ بِالْوِتْرِ
Narrated `A'isha:
The Prophet (ﷺ) used to offer his night prayer while I was sleeping across in his bed. Whenever he intended to offer the witr prayer, he used to wake me up and I would offer the witr prayer too.
Reference: Sahih al-Bukhari 997
In-book reference: Book 14, Hadith 8
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 16, Hadith 111