(69) باب صِيَامِ يَوْمِ عَاشُورَاءَ
Narrated Abu Musa:
The day of 'Ashura' was considered as `Id day by the Jews. So the Prophet (ﷺ) ordered, "I recommend you (Muslims) to fast on this day." (DE)
Reference (DE): Sahih al-Bukhari 2005 (DE)
In-book reference (DE): Book 30, Hadith 110 (DE)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 31, Hadith 223 (DE)