حَدَّثَنَا مُسَدَّدٌ حَدَّثَنَا يَحْيَی عَنْ عُبَيْدِ اللَّهِ قَالَ أَخْبَرَنِي نَافِعٌ عَنْ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا قَالَ کَانَ عَاشُورَائُ يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَلَمَّا نَزَلَ رَمَضَانُ قَالَ مَنْ شَائَ صَامَهُ وَمَنْ شَائَ لَمْ يَصُمْهُ
صحیح بخاری · Hadith 4503
Narrated `Abdullah: That Al-Ash'ath entered upon him while he was eating. Al-Ash'ath said, "Today is 'Ashura." I said (to him), "Fasting had been observed (on such a day) before (the order of compulsory fasting in) Ramadan was revealed. But when (the order of fasting in) Ramadan was revealed, fasting (on 'Ashura') was given up, so come and eat."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020