صحيح مسلم
Sahih Muslim
كتاب الصيام
The Book of Fasting
باب صَوْمِ يَوْمِ عَاشُورَاءَ:
Chapter: Fasting on the day of Ashura'
Hadith 1129
This hadith is listed as number 2655 in Maktaba Shamila
وحَدَّثَنَا ابْنُ أَبِي عُمَرَ ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ ، عَنِ الزُّهْرِيِّ بِهَذَا الْإِسْنَادِ ، سَمِعَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ فِي مِثْلِ هَذَا الْيَوْمِ : " إِنِّي صَائِمٌ فَمَنْ شَاءَ أَنْ يَصُومَ فَلْيَصُمْ " ، وَلَمْ يَذْكُرْ بَاقِي حَدِيثِ مَالِكٍ وَيُونُسَ .
This hadith has been narrated on the authority of Zuhri with the same chain of transmitters that be heard Allah's Apostle (ﷺ) as saying on a similar day: I am fasting today, so he who wishes to observe fast should do so; but he did not make mention of the rest of the hadith.
