Sahih al-Bukhari 512

Arabic

حَدَّثَنَا مُسَدَّدٌ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا هِشَامٌ، قَالَ حَدَّثَنِي أَبِي، عَنْ عَائِشَةَ، قَالَتْ كَانَ النَّبِيُّ صلى الله عليه وسلم يُصَلِّي وَأَنَا رَاقِدَةٌ مُعْتَرِضَةٌ عَلَى فِرَاشِهِ، فَإِذَا أَرَادَ أَنْ يُوتِرَ أَيْقَظَنِي فَأَوْتَرْتُ‏.‏

English translation

Narrated `Aisha:The Prophet (ﷺ) used to pray while I was sleeping across in his bed in front of him. Whenever he wanted to pray witr, he would wake me up and I would pray witr

Reference: Sahih al-Bukhari 512, Book of Prayers (Salat). English translation by Dr. Muhammad Muhsin Khan.