IBNHIBBAN 3632:
from Abū Qatādah —
[Machine] About the Prophet ﷺ said, "Fasting on the day of Arafah, I hope for Allah to expiate the sins of the previous and upcoming year, and fasting on the day of Ashura, I hope for Allah to expiate the sins of the previous year."
ابن حبّان ٣٦٣٢:
عن ابو قتاده —
عَنِ النَّبِيِّ ﷺ قَالَ «صِيَامُ يَوْمِ عَرَفَةَ إِنِّي أَحْتَسِبَ عَلَى اللَّهِ أَنْ يُكَفِّرَ السَّنَةَ الَّتِي قَبْلَهُ وَالسَّنَةَ الَّتِي بَعْدَهُ وَصِيَامُ يَوْمِ عَاشُورَاءَ إِنِّي أَحْتَسِبُ عَلَى اللَّهِ أَنْ يُكَفِّرَ السَّنَةَ الَّتِي قَبْلَهُ»
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