Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:5203Yaḥyá > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

'Ashurah was a day on which we used to fast in pre-Islamic days. When (fasting of) Ramadan was prescribed, the Messenger of Allah ﷺ said: This is one of the days of Allah ; he who wishes may fast on it. (Using translation from Abū Dāʾūd 2443)   

أحمد:٥٢٠٣حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللهِ أَخْبَرَنِي نَافِعٌ عَنِ ابْنِ عُمَرَ قَالَ

كَانَ يَوْمُ عَاشُورَاءَ يَوْمًا يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَلَمَّا نَزَلَ رَمَضَانُ سُئِلَ عَنْهُ رَسُولُ اللهِ ﷺ قَالَ هُوَ يَوْمٌ مِنْ أَيَّامِ اللهِ تَعَالَى مَنْ شَاءَ صَامَهُ وَمَنْ شَاءَ تَرَكَهُ  


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Collected by Bukhārī, Abū Dāwūd, Suyūṭī
bukhari:4501Musaddad > Yaḥyá > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

Fasting was observed on the day of 'Ashura' (i.e. 10th of Muharram) by the people of the Pre-lslamic Period. But when (the order of compulsory fasting) in the month of Ramadan was revealed, the Prophet said, "It is up to one to fast on it (i.e. day of 'Ashura') or not."  

البخاري:٤٥٠١حَدَّثَنَا مُسَدَّدٌ حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللَّهِ قَالَ أَخْبَرَنِي نَافِعٌ عَنِ ابْنِ عُمَرَ ؓ قَالَ

كَانَ عَاشُورَاءُ يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَلَمَّا نَزَلَ رَمَضَانُ قَالَ مَنْ شَاءَ صَامَهُ وَمَنْ شَاءَ لَمْ يَصُمْهُ  

abudawud:2443Musaddad > Yaḥyá > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

'Ashurah was a day on which we used to fast in pre-Islamic days. When (fasting of) Ramadan was prescribed, the Messenger of Allah ﷺ said: This is one of the days of Allah ; he who wishes may fast on it.  

أبو داود:٢٤٤٣حَدَّثَنَا مُسَدَّدٌ حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللَّهِ قَالَ أَخْبَرَنِي نَافِعٌ عَنِ ابْنِ عُمَرَ قَالَ

كَانَ عَاشُورَاءُ يَوْمًا نَصُومُهُ فِي الْجَاهِلِيَّةِ فَلَمَّا نَزَلَ رَمَضَانُ قَالَ رَسُولُ اللَّهِ ﷺ هَذَا يَوْمٌ مِنْ أَيَّامِ اللَّهِ فَمَنْ شَاءَ صَامَهُ وَمَنْ شَاءَ تَرَكَهُ  

suyuti:422-304bIbn ʿUmar
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السيوطي:٤٢٢-٣٠٤b

"عَنِ ابْن عُمَرَ قَالَ: كَان يَومُ عَاشُورَاءَ يَوْمًا يَصُومُهُ أَهْل الْجَاهِلِيَّةِ، فَلَمَّا فُرِضَ صَوْمُ رَمَضَانَ سُئِلَ عَنْهُ النَّبِىُّ ﷺ فَقَالَ: هُوَ يَوْم مِنْ أَيَّامِ الله، فَمَنْ شَاءَ صَامَهُ، وَمَنْ شَاءَ تَركَهُ".  

ابن جرير