(19) باب صَوْمِ يَوْمِ عَاشُورَاءَ
Abu Musa (Allah be pleased with him) reported:
The day of 'Ashura was one which the Jews respected and they treated it as Id. The Messenger of Allah (ﷺ) said: You also observe fast on this day. (ID)
Reference (ID): Sahih Muslim 1131 a (ID)
In-book reference (ID): Book 13, Hadith 166 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 6, Hadith 2522 (ID)