صحيح مسلم
Sahih Muslim
كتاب الصيام
The Book of Fasting
باب مَنْ أَكَلَ فِي عَاشُورَاءَ فَلْيَكُفَّ بَقِيَّةَ يَوْمِهِ:
Chapter: Whoever eats on'Ashura, let him refrain (from eating) for the rest of the day
Hadith 1135
This hadith is listed as number 2668 in Maktaba Shamila
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ ، حَدَّثَنَا حَاتِمٌ يَعْنِي ابْنَ إِسْمَاعِيل ، عَنْ يَزِيدَ بْنِ أَبِي عُبَيْدٍ ، عَنْ سَلَمَةَ بْنِ الْأَكْوَعِ رَضِيَ اللَّهُ عَنْهُ ، أَنَّهُ قَالَ : " بَعَثَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَجُلًا مِنْ أَسْلَمَ يَوْمَ عَاشُورَاءَ ، فَأَمَرَهُ أَنْ يُؤَذِّنَ فِي النَّاسِ مَنْ كَانَ لَمْ يَصُمْ فَلْيَصُمْ ، وَمَنْ كَانَ أَكَلَ فَلْيُتِمَّ صِيَامَهُ إِلَى اللَّيْلِ " .
Salama bin al-Akwa' (RA) reported that the Messenger of Allah (ﷺ) sent a person of the tribe of Aslam on the day of 'Ashura and commanded him to declare to the people to observe fast in case they had not observed it, and to complete fast till evening if they had taken food.
