و حَدَّثَنَاه ابْنُ بَشَّارٍ وَأَبُو بَکْرِ بْنُ نَافِعٍ جَمِيعًا عَنْ مُحَمَّدِ بْنِ جَعْفَرٍ عَنْ شُعْبَةَ عَنْ أَبِي بِشْرٍ بِهَذَا الْإِسْنَادِ وَقَالَ فَسَأَلَهُمْ عَنْ ذَلِکَ
صحیح مسلم · Hadith 2657
Ibn Abbas (Allah be pleased with both of them) reported that when Allah's Messenger ( صلی اللہ علیہ وسلم ) 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: It is the day on which Allah granted victory to Moses and (his people) Bani Isra'il over the Pharaoh and we observe fast out of gratitude to Him. Upon this the Messenger of Allah ( صلی اللہ علیہ وسلم ) said: We have a closer connection with Moses than you have, and he commanded to observe fast on this day.
Sanad
و حَدَّثَنَاه ابْنُ بَشَّارٍ وَأَبُو بَکْرِ بْنُ نَافِعٍ جَمِيعًا عَنْ مُحَمَّدِ بْنِ جَعْفَرٍ عَنْ شُعْبَةَ عَنْ أَبِي بِشْرٍ