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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:1938 – Sufyān > ʿUbaydullāh b. Abū Yazīd Mundh Sabʿīn Sanah > Ibn ʿAbbās

[Machine] I heard Ibn Abbas say, "I never saw the Prophet ﷺ fasting a day seeking its reward over other days except for the day of Ashura. Sufyan also said on another occasion, 'Except for this day,' referring to the day of Ashura, 'and this month,' referring to the month of Ramadan."  

أحمد:١٩٣٨ – حَدَّثَنَا سُفْيَانُ قَالَ أَخْبَرَنِي عُبَيْدُ اللهِ بْنُ أَبِي يَزِيدَ مُنْذُ سَبْعِينَ سَنَةً قَالَ

سَمِعْتُ ابْنَ عَبَّاسٍ يَقُولُ مَا عَلِمْتُ رَسُولَ اللهِ ﷺ صَامَ يَوْمًا يَتَحَرَّى فَضْلَهُ عَلَى الْأَيَّامِ غَيْرَ يَوْمِ عَاشُورَاءَ وَقَالَ سُفْيَانُ مَرَّةً أُخْرَى إِلا هَذَا الْيَوْمَ يَعْنِي عَاشُورَاءَ وَهَذَا الشَّهْرَ شَهْرَ رَمَضَانَ  

See similar narrations below:

Collected by Nasāʾī, Aḥmad, Nasāʾī's Kubrá
nasai:2370 – Qutaybah > Sufyān > ʿUbaydullāh > Ibn ʿAbbās And Suʾil > Ṣiyām ʿĀshūrāʾ

he heard Ibn 'Abbas, when he was asked about the fast of 'Ashura' say: "I do not know that the Prophet fasted any day because of its virtue, except this day" meaning the month of Ramadan and the day of Ashura.'  

النسائي:٢٣٧٠ – أَخْبَرَنَا قُتَيْبَةُ قَالَ حَدَّثَنَا سُفْيَانُ عَنْ عُبَيْدِ اللَّهِ أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ وَسُئِلَ عَنْ صِيَامِ عَاشُورَاءَ قَالَ

مَا عَلِمْتُ النَّبِيَّ ﷺ صَامَ يَوْمًا يَتَحَرَّى فَضْلَهُ عَلَى الأَيَّامِ إِلاَّ هَذَا الْيَوْمَ يَعْنِي شَهْرَ رَمَضَانَ وَيَوْمَ عَاشُورَاءَ  

ahmad:2854 – Muḥammad b. Bakr > Ibn Jurayj > ʿUbaydullāh b. Abū Yazīd > Ibn ʿAbbās

[Machine] "He heard Ibn Abbas saying, 'I did not know that the Messenger of Allah ﷺ would ever seek his virtue over others except on the day of Ashura or the month of Ramadan.'"  

أحمد:٢٨٥٤ – حَدَّثَنَا مُحَمَّدُ بْنُ بَكْرٍ قَالَ أَخْبَرَنَا ابْنُ جُرَيْجٍ قَالَ أَخْبَرَنِي عُبَيْدُ اللهِ بْنُ أَبِي يَزِيدَ

أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ يَقُولُ مَا عَلِمْتُ رَسُولَ اللهِ ﷺ كَانَ يَتَحَرَّىيَوْمًا يَبْتَغِي فَضْلَهُ عَلَى غَيْرِهِ إِلَّا هَذَا الْيَوْمَ يَوْمَ عَاشُورَاءَ أَوْ شَهْرَ رَمَضَانَ  

ahmad:3475 – ʿAbd al-Razzāq And Ibn Bakr > Ibn Jurayj > Akhbaranīʿubayd Allāh b. Abū Yazīd > Ibn ʿAbbās

[Machine] He heard Ibn Abbas saying, "I haven't known the Messenger of Allah ﷺ to fast a day seeking its excellence over others, except for the Day of Ashura or Ramadan." He said, "The soul or the month of Ramadan."  

أحمد:٣٤٧٥ – حَدَّثَنَا عَبْدُ الرَّزَّاقِ وَابْنُ بَكْرٍ قَالَا أَخْبَرَنَا ابْنُ جُرَيْجٍ قَالَ أَخْبَرَنِيعُبَيْدُ اللهِ بْنُ أَبِي يَزِيدَ

أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ يَقُولُ مَا عَلِمْتُ رَسُولَ اللهِ ﷺ كَانَ يَتَحَرَّى صِيَامَ يَوْمٍ يَبْتَغِي فَضْلَهُ عَلَى غَيْرِهِ إِلَّا هَذَا الْيَوْمَ لِيَوْمِ عَاشُورَاءَ أَوْ رَمَضَانَ قَالَ رَوْحٌ أَوْ شَهْرُ رَمَضَانَ  

nasai-kubra:2691 – Qutaybah b. Saʿīd > Sufyān > ʿUbaydullāh > Ibn ʿAbbās Yasʾal > Ṣiyām Yawm ʿĀshūrāʾ

he heard Ibn 'Abbas, when he was asked about the fast of 'Ashura' say: "I do not know that the Prophet fasted any day because of its virtue, except this day" meaning the month of Ramadan and the day of Ashura.' (Using translation from Nasāʾī 2370)  

الكبرى للنسائي:٢٦٩١ – أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا سُفْيَانُ عَنْ عُبَيْدِ اللهِ سَمِعَ ابْنَ عَبَّاسٍ يَسْأَلُ عَنْ صِيَامِ يَوْمِ عَاشُورَاءَ قَالَ

«مَا عَلِمْتُ النَّبِيَّ ﷺ صَامَ يَوْمًا يَتَحَرَّى فَضْلَهُ عَلَى الْأَيَّامِ إِلَّا هَذَا الْيَوْمَ يَعْنِي شَهْرَ رَمَضَانَ وَيَوْمَ عَاشُورَاءَ»