(70) باب صَوْمِ النَّبِيِّ صلى الله عليه وسلم - بِأَبِي هُوَ وَأُمِّي - وَذِكْرِ اخْتِلاَفِ النَّاقِلِينَ لِلْخَبَرِ فِي ذَلِكَ
It was narrated that 'Aishah said:
"The Messenger of Allah did not fast any month more than Shaban; he used to fast (all of) it, or most of it."
Reference: Sunan an-Nasa'i 2354
In-book reference: Book 22, Hadith 265
English translation: Vol. 3, Book 22, Hadith 2356