Prayer at Night (Tahajjud)
19/24. Chapter:
Whoever talks after offering two Rak'a (Sunna) (of the Fajr prayer)
Sahih Bukhari
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.
Narrated `Aisha: After offering the Sunna of the Fajr prayer, the Prophet (ﷺ) used to talk to me, if I happen to be awake; otherwise he would lie down till the Iqama call was proclaimed (for the Fajr prayer).
Reference : Sahih al-Bukhari 1161In-book reference : Book 19, Hadith 40USC-MSA web (English) reference : Vol. 2, Book 21, Hadith 258