Sunan an-Nasa'i

Sunan an-Nasa'i 1727

Witr with thirteen rak'ahs
The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day Search within the hadiths
Sunan an-Nasa'i 1727
Arabic hadith text
أَخْبَرَنَا أَحْمَدُ بْنُ حَرْبٍ، قَالَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ عَمْرِو بْنِ مُرَّةَ، عَنْ يَحْيَى بْنِ الْجَزَّارِ، عَنْ أُمِّ سَلَمَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلميُوتِرُ بِثَلاَثَ عَشْرَةَ رَكْعَةً فَلَمَّا كَبِرَ وَضَعُفَ أَوْتَرَ بِتِسْعٍ ‏.‏
Translation
It was narrated that Umm Salamah said

"The Messenger of Allah (ﷺ) used to pray witr with thirteen rak'ahs, but when he grew older and weaker he prayed witr with nine."