THE VALUE OF FASTING ON THE 10TH DAY OF MUHARRAM H 1278 "The Messenger of Allah, praise and peace be upon him, was asked about fasting on the tenth day of Muharram and answered, 'It atones for the sins of the preceding year.'" R 1278 Muslim with a chain up to Abu Katadah who related that the Messenger of Allah, praise and peace be upon him, said this.
1252- وعن أَبي قتادة رضي الله عنه : أنَّ رسول الله صلى الله عليه وآله وسلم سُئِلَ عَنْ صِيامِ يَوْمِ عَاشُوراءَ، فَقَالَ : "يُكَفِّرُ السَّنَةَ المَاضِيَةَ" رواه مسلم .