Narrator names are parsed automatically from the isnad; identity and biographical details are matched from rijal sources (Itqan narrator profiles, muslimscholars.info).
Abu Musa reported that the people of Khaibar (most of them were Jews) observed fast on the day of 'Ashura and they treated it as 'Id and gave their women ornaments and beautiful dresses to wear. The Messenger of Allah (ﷺ) said:You (only) observe fast on this day