[Machine] The Messenger of Allah, ﷺ , said: "Fasting on the Day of Ashura is an expiation for one year, and fasting on the Day of Arafah is an expiation for two years, past and future." Abu Abdullah Al-Hasan bin Bisr said: "We do not consider Al-Hasan bin Bisr strong in Hadith."
قَالَ رَسُولُ اللهِ ﷺ «صَوْمُ عَاشُورَاءَ كَفَّارَةُ سَنَةٍ وَصَوْمُ عَرَفَةَ كَفَّارَةُ سَنَتَيْنِ مَاضِيَةٍ وَمُسْتَقْبَلَةٍ» قَالَ أَبُو عَبْدِ الرَّحْمَنِ «الْحَسَنُ بْنُ بِشْرٍ لَيْسَ عِنْدَنَا بِالْقَوِيِّ فِي الْحَدِيثِ»