This hadith has been narrated by Ibn Bishr with the same chain of transmitters (but with a slight variation) that he (the Holy Prophet) inquired of them (Jews) about it (fasting on the day of 'Ashura).
| Reference | : Sahih Muslim 1130b |
| In-book reference | : Book 13, Hadith 163 |
| USC-MSA web (English) reference | : Book 6, Hadith 2519 |
| (deprecated numbering scheme) |