Prayer at Night (Tahajjud)
19/10. Chapter:
How was the Salat of the Prophet (pbuh) and how many Rak'a he used to offer at night?
Sahih Bukhari
حَدَّثَنَا مُسَدَّدٌ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ شُعْبَةَ، قَالَ حَدَّثَنِي أَبُو جَمْرَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ كَانَ صَلاَةُ النَّبِيِّ صلى الله عليه وسلم ثَلاَثَ عَشْرَةَ رَكْعَةً. يَعْنِي بِاللَّيْلِ.
Narrated Ibn `Abbas: The prayer of the Prophet (ﷺ) used to be of thirteen rak`at, i.e. of the night prayer.
Reference : Sahih al-Bukhari 1138In-book reference : Book 19, Hadith 19USC-MSA web (English) reference : Vol. 2, Book 21, Hadith 239