"‘Ashura' was a day on which Quraish used to fast in the pagan era Ramadan became the obligatory religious duty, and 'Ashura' was omitted, so one is free to fast this day or not to fast it.”
"I said to 'A'sha: “Was Allah’s Messenger (Allah bless him and give him peace) used to fasting three days out of every month?” She said; “Yes!” I said: “Which days did he fast?” She said: “He was not concerned about which days he fasted.”
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ: حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنْ مَنْصُورٍ، عَنِ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، قَالَ: سَأَلْتُ عَائِشَةَ، أَكَانَ رَسُولُ اللهِ صلى الله عليه وسلم، يَخُصُّ مِنَ الأَيَامِ شَيْئًا؟ قَالَتْ: كَانَ عَمَلُهُ دِيمَةً، وَأَيُّكُمْ يُطِيقُ مَا كَانَ رَسُولُ اللهِ صلى الله عليه وسلم، يُطِيقُ.
Narrated 'Alqama said:
“I asked 'A'isha (may Allah be well pleased with her): ‘Was Allah’s Messenger (Allah bless him and give him peace) used to singling out any of the days?’ She said: ‘His work was perpetual. Who of you would be capable of doing what Allah’s Messenger (Allah bless him and give him peace) used to be do?”
