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 عُبَيْدُ اللَّهِ بْنُ مُوسَى، قَالَ أَخْبَرَنَا حَنْظَلَةُ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ كَانَ النَّبِيُّ صلى الله عليه وسلم يُصَلِّي مِنَ اللَّيْلِ ثَلاَثَ عَشْرَةَ رَكْعَةً مِنْهَا الْوِتْرُ وَرَكْعَتَا الْفَجْرِ.
Narrated `Aisha: The Prophet (p.b.u.h) used to offer thirteen rak`at of the night prayer and that included the witr and two rak`at (Sunna) of the Fajr prayer.
Reference : Sahih al-Bukhari 1140In-book reference : Book 19, Hadith 21USC-MSA web (English) reference : Vol. 2, Book 21, Hadith 241