Sahih al-Bukhari
Sahih al-Bukhari 2000
Arabic hadith text
حَدَّثَنَا أَبُو عَاصِمٍ، عَنْ عُمَرَ بْنِ مُحَمَّدٍ، عَنْ سَالِمٍ، عَنْ أَبِيهِ ـ رضى الله عنه ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم يَوْمَ عَاشُورَاءَ " إِنْ شَاءَ صَامَ ".
Translation
Abū ʿĀṣim related to us, from ʿUmar ibn Muḥammad, from Sālim, from his father (may Allah be pleased with him), who said: Regarding the Day of ʿĀshūrāʾ, the Prophet (Allah bless him and grant him peace) said: ‘Whoever wishes may fast.’