Ibn Abbas (Allah be pleased with both of them) reported that when Allah's Messenger (ﷺ) came to Medina, he found the Jews observing the fast on the day of Ashura. They (the Jews) were asked about it and they said:
Reference | : Sahih Muslim 1130a |
In-book reference | : Book 13, Hadith 162 |
USC-MSA web (English) reference | : Book 6, Hadith 2518 |
(deprecated numbering scheme) |