Sunan an-Nasa'i 2372
سنن النسائي#2372Sahihأَخْبَرَنِي زَكَرِيَّا بْنُ يَحْيَى، قَالَ حَدَّثَنَا شَيْبَانُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنِ الْحُرِّ بْنِ صَيَّاحٍ، عَنْ هُنَيْدَةَ بْنِ خَالِدٍ، عَنِ امْرَأَتِهِ، قَالَتْ حَدَّثَتْنِي بَعْضُ، نِسَاءِ النَّبِيِّ صلى الله عليه وسلم أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَصُومُ يَوْمَ عَاشُورَاءَ وَتِسْعًا مِنْ ذِي الْحِجَّةِ وَثَلاَثَةَ أَيَّامٍ مِنَ الشَّهْرِ أَوَّلَ اثْنَيْنِ مِنَ الشَّهْرِ وَخَمِيسَيْنِ .
It was narrated from Hunaidah bin Khalid that his wife said:"One of the wives of the Prophet said: "The Prophet used to fast on the day of 'Ashura, nine days of Dhul-Hijjah and three days each month: The first Monday of the month, and two Thursday
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 22:283