حَدَّثَنَا مُسَدَّدٌ حَدَّثَنَا يَحْيَی عَنْ يَزِيدَ بْنِ أَبِي عُبَيْدٍ حَدَّثَنَا سَلَمَةُ بْنُ الْأَکْوَعِ أَنَّ رَسُولَ اللَّهِ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لِرَجُلٍ مِنْ أَسْلَمَ أَذِّنْ فِي قَوْمِکَ أَوْ فِي النَّاسِ يَوْمَ عَاشُورَائَ أَنَّ مَنْ أَکَلَ فَلْيُتِمَّ بَقِيَّةَ يَوْمِهِ وَمَنْ لَمْ يَکُنْ أَکَلَ فَلْيَصُمْ
صحیح بخاری · Hadith 7265
Narrated Salama bin Al-Akwa`: Allah's Apostle said to a man from the tribe of Al-Aslam, "Proclaim among your people (or the people) on the day of 'Ashura' (tenth of Muharram), 'Whosoever has eaten anything should fast for the rest of the day; and whoever has not eaten anything, should complete his fast.' "
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020