(81) باب صَوْمِ ثَلاَثَةِ أَيَّامٍ مِنَ الشَّهْرِ
It was narrated that Abu Dharr said:
"My beloved Prophet advised me to do three things which I will never give up, if Allah wills. He advised me to pray Duha, to pray Witr before sleeping, and to fast three days of each month." (JA)
Reference (JA): Sunan an-Nasa'i 2404 (JA)
In-book reference (JA): Book 22, Hadith 315 (JA)
English translation (JA): Vol. 1, Book 22, Hadith 2406 (JA)