[Machine] The Messenger of Allah ﷺ said regarding the fast of the day of Ashura, after the fast of Ramadan was obligated: "Whoever wishes to fast it may do so, and whoever wishes to break his fast may do so."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ فِي صَوْمِ يَوْمِ عَاشُورَاءَ بَعْدَمَا نَزَلَ صَوْمُ رَمَضَانَ «مَنْ شَاءَ صَامَهُ وَمَنْ شَاءَ أَفْطَرَهُ»