Importance of fasting of Ashura

السلام عليكم ورحمة الله وبركاتة

بِسْمِ ٱللَّٰهِ ٱلرَّحْمَٰنِٱلرَّحِيمِ

Abu Qatadah (RA) narrated that: the Prophet (SAW) said: "Fast the Day of Ashura, for indeed I anticipate that Allah will forgive (the sins of) the year before it." [Jami` at-Tirmidhi 752]

الحمدلله