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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
bayhaqi:8400 – Abū Muḥammad ʿAbdullāh b. Yaḥyá b. ʿAbd al-Jabbār al-Sukkarī > Ismāʿīl b. Muḥammad al-Ṣaffār > Aḥmad b. Manṣūr > ʿAbd al-Razzāq > Maʿmar > Abū Isḥāq > al-Aswad b. Yazīd > Mā

[Machine] I saw someone ordering the fasting on the day of Ashura from Ali and Abu Musa.  

البيهقي:٨٤٠٠ – أَخْبَرَنَا أَبُو مُحَمَّدٍ عَبْدُ اللهِ بْنُ يَحْيَى بْنِ عَبْدِ الْجَبَّارِ السُّكَّرِيُّ بِبَغْدَادَ أنبأ إِسْمَاعِيلُ بْنُ مُحَمَّدٍ الصَّفَّارُ ثنا أَحْمَدُ بْنُ مَنْصُورٍ ثنا عَبْدُ الرَّزَّاقِ أنبأ مَعْمَرٌ عَنْ أَبِي إِسْحَاقَ عَنِ الْأَسْوَدِ بْنِ يَزِيدَ قَالَ مَا

رَأَيْتُ أَحَدًا كَانَ آمَرَ بِصِيَامِ يَوْمِ عَاشُورَاءَ مِنْ عَلِيٍّ وَأَبِي مُوسَى ؓ  

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Collected by Suyūṭī
suyuti:4-2069b – al-Aswad b. Yazīd > Mā
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السيوطي:٤-٢٠٦٩b –

"عَنِ الأَسْوَدِ بْنِ يَزِيدَ قَالَ: مَا رَأَيْتُ أَحَدًا كَانَ آمِرًا بِصِيَامِ يَوْمِ عَاشُورَاءَ عَنْ عَلِىٍّ وَأَبِى مُوسَى".  

ابن جرير، [ق] البيهقى في السنن