(70) باب صَوْمِ النَّبِيِّ صلى الله عليه وسلم - بِأَبِي هُوَ وَأُمِّي - وَذِكْرِ اخْتِلاَفِ النَّاقِلِينَ لِلْخَبَرِ فِي ذَلِكَ
It was narrated from Umm Salamah:
That the Prophet would not fast any month of the year in full except Shaban and he used to join it to Ramadan. (ID)
Reference (ID): Sunan an-Nasa'i 2353 (ID)
In-book reference (ID): Book 22, Hadith 264 (ID)
English translation (ID): Vol. 3, Book 22, Hadith 2355 (ID)