Sunan an-Nasa'i
Book 20: The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day
كتاب قيام الليل وتطوع النهار
220 hadith in this book
Chapter 44 How to pray witr with eleven rak'ahs
باب كَيْفَ الْوِتْرُ بِإِحْدَى عَشْرَةَ رَكْعَةً
It was narrated from Aishah that: The Prophet (ﷺ) used to pray eleven rak'ahs at night, of which one was witr, then he would lie down on his right side.
أَخْبَرَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا عَبْدُ الرَّحْمَنِ، قَالَ حَدَّثَنَا مَالِكٌ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يُصَلِّي مِنَ اللَّيْلِ إِحْدَى عَشْرَةَ رَكْعَةً وَيُوتِرُ مِنْهَا بِوَاحِدَةٍ ثُمَّ يَضْطَجِعُ عَلَى شِقِّهِ الأَيْمَنِ .
Hadith text, translations and grading are courtesy of Sunnah.com.