Sahih al-Bukhari 1161

Arabic

حَدَّثَنَا بِشْرُ بْنُ الْحَكَمِ، حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي سَالِمٌ أَبُو النَّضْرِ، عَنْ أَبِي سَلَمَةَ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ إِذَا صَلَّى ‏{‏سُنَّةَ الْفَجْرِ‏}‏ فَإِنْ كُنْتُ مُسْتَيْقِظَةً حَدَّثَنِي وَإِلاَّ اضْطَجَعَ حَتَّى يُؤْذَنَ بِالصَّلاَةِ‏.‏

English translation

Narrated `Aisha:After offering the Sunna of the Fajr prayer, the Prophet (ﷺ) used to talk to me, if I happened to be awake; otherwise he would lie down till the Iqama call was proclaimed (for the Fajr prayer)

Reference: Sahih al-Bukhari 1161, Book of Prayer at Night (Tahajjud). English translation by Dr. Muhammad Muhsin Khan.