حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ عَنْ مَالِکٍ عَنْ هِشَامِ بْنِ عُرْوَةَ عَنْ أَبِيهِ أَنَّ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ کَانَ يَوْمُ عَاشُورَائَ تَصُومُهُ قُرَيْشٌ فِي الْجَاهِلِيَّةِ وَکَانَ رَسُولُ اللَّهِ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ يَصُومُهُ فَلَمَّا قَدِمَ الْمَدِينَةَ صَامَهُ وَأَمَرَ بِصِيَامِهِ فَلَمَّا فُرِضَ رَمَضَانُ تَرَکَ يَوْمَ عَاشُورَائَ فَمَنْ شَائَ صَامَهُ وَمَنْ شَائَ تَرَکَهُ
صحیح بخاری · Hadith 2002
Narrated Aisha: Quraish used to fast on the day of 'Ashura' in the Pre-Islamic period, and Allah's Apostle too, used to fast on that day. When he came to Medina, he fasted on that day and ordered others to fast, too. Later when the fasting of the month of Ramadan was prescribed, he gave up fasting on the day of 'Ashura' and it became optional for one to fast on it or not.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020