Sahih Muslim Book: 14, Hadith: 2703

وَحَدَّثَنَا أَحْمَدُ بْنُ عُثْمَانَ النَّوْفَلِيُّ، حَدَّثَنَا أَبُو عَاصِمٍ، حَدَّثَنَا عُمَرُ بْنُ مُحَمَّدِ بْنِ، زَيْدٍ الْعَسْقَلاَنِيُّ حَدَّثَنَا سَالِمُ بْنُ عَبْدِ اللَّهِ، حَدَّثَنِي عَبْدُ اللَّهِ بْنُ عُمَرَ، – رضى الله عنهما – قَالَ ذُكِرَ عِنْدَ رَسُولِ اللَّهِ صلى الله عليه وسلم يَوْمُ عَاشُورَاءَ فَقَالَ ‏ “‏ ذَاكَ يَوْمٌ كَانَ يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَمَنْ شَاءَ صَامَهُ وَمَنْ شَاءَ تَرَكَهُ ‏”‏ ‏.‏ ‘Abdullah b. Umar (Allah be pleased with them) reported that the day of ‘Ashura was mentioned before the Messenger of Allah (may peace be upon him) and he said:It is a day when the people in the pre-Islamic days need to observe fast, so he who wishes to observe fast should do so, and he who wishes to abandon it should do so. Chain : Ahmed bin ‘Uthman bin Hakeem – al-Dahhak bin Mukhlad Abu ‘Asim al-Nabil – ‘Umar bin Muhammad bin Zayd – Salim bin ‘Abdullah bin ‘Umar – ibn Umar ...