(70) باب صَوْمِ النَّبِيِّ صلى الله عليه وسلم - بِأَبِي هُوَ وَأُمِّي - وَذِكْرِ اخْتِلاَفِ النَّاقِلِينَ لِلْخَبَرِ فِي ذَلِكَ
It was narrated that Hafsah said:
"The Messenger of Allah used to fast Thursday and Monday of each month, and Monday of the following week." (JA)
Reference (JA): Sunan an-Nasa'i 2366 (JA)
In-book reference (JA): Book 22, Hadith 277 (JA)
English translation (JA): Vol. 3, Book 22, Hadith 2368 (JA)