The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day
20/43. Chapter:
How to pray witr with nine rak'ahs
Sunan an-Nasai
أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا حَجَّاجٌ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ سَعْدِ بْنِ هِشَامٍ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يُوتِرُ بِتِسْعٍ وَيَرْكَعُ رَكْعَتَيْنِ وَهُوَ جَالِسٌ .
It was narrated from Aishah that: The Messenger of Allah (ﷺ) used to pray witr with nine and pray two rak'ahs sitting down.
Reference : Sunan an-Nasa'i 1723In-book reference : Book 20, Hadith 126English translation : Vol. 2, Book 20, Hadith 1724