(83) باب كَيْفَ يَصُومُ ثَلاَثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ وَذِكْرِ اخْتِلاَفِ النَّاقِلِينَ لِلْخَبَرِ فِي ذَلِكَ .
It was narrated that Umm Salamah said:
"The Messenger of Allah used to enjoin fasting three days: The first Thursday, and Monday and Monday." (AR)
Reference (AR): Sunan an-Nasa'i 2419 (AR)
In-book reference (AR): Book 22, Hadith 330 (AR)
English translation (AR): Vol. 3, Book 22, Hadith 2421 (AR)