عَنْ أَبِي قَتَادَةَ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ: ((صَوْمُ يَوْمِ عَرَفَةَ كَفَّارَةُ سَنَتَيْنِ، سَنَةٍ مَاضِيَةٍ وَسَنَةٍ مُسْتَقْبَلَةٍ، وَيَوْمُ عَاشُورَاءَ كَفَّارَةُ سَنَةٍ))
It is narrated from Sayyiduna Abu Qatadah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Fasting on the day of Arafah is an expiation for the past and coming two years, and fasting on Ashura is an expiation for the past one year.
Under this chapter, the following sub-chapters and hadiths have been mentioned.