(39) باب ذِكْرِ الاِخْتِلاَفِ عَلَى حَبِيبِ بْنِ أَبِي ثَابِتٍ فِي حَدِيثِ ابْنِ عَبَّاسٍ فِي الْوَتْرِ . ج }
It was narrated that Umm Salamah said:
"The Messenger of Allah (ﷺ) used to pray witr with thirteen rak'ahs, and when he grew older and weaker he prayed witr with nine." (FR)
Reference (FR): Sunan an-Nasa'i 1708 (FR)
In-book reference (FR): Book 20, Hadith 111 (FR)
English translation (FR): Vol. 2, Book 20, Hadith 1709 (FR)