كتاب 30
30  
Book 30
(30)
Chapter 30
(30)
باب 30
Sahih al-Bukhari 1824
Narrated Ibn `Umar:
The Prophet (ﷺ) observed the fast on the 10th of Muharram ('Ashura), and ordered (Muslims) to fast on that day, but when the fasting of the month of Ramadan was prescribed, the fasting of the 'Ashura' was abandoned. `Abdullah did not use to fast on that day unless it coincided with his routine fasting by chance.
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا إِسْمَاعِيلُ، عَنْ أَيُّوبَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ صَامَ النَّبِيُّ صلى الله عليه وسلم عَاشُورَاءَ، وَأَمَرَ بِصِيَامِهِ‏.‏ فَلَمَّا فُرِضَ رَمَضَانُ تُرِكَ‏.‏ وَكَانَ عَبْدُ اللَّهِ لاَ يَصُومُهُ، إِلاَّ أَنْ يُوَافِقَ صَوْمَهُ‏.‏
Reference : Sahih al-Bukhari 1824
In-book reference : Book 30, Hadith 1824
USC-MSA web (English) reference : Vol. 1, Book 1, Hadith 1824
  (deprecated numbering scheme)