Sahih Muslim 1126
صحيح مسلم#1126Sahihوَحَدَّثَنِي مُحَمَّدُ بْنُ أَحْمَدَ بْنِ أَبِي خَلَفٍ، حَدَّثَنَا رَوْحٌ، حَدَّثَنَا أَبُو مَالِكٍ، عُبَيْدُ اللَّهِ بْنُ الأَخْنَسِ أَخْبَرَنِي نَافِعٌ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، - رضى الله عنهما - قَالَ ذُكِرَ عِنْدَ النَّبِيِّ صلى الله عليه وسلم صَوْمُ يَوْمِ عَاشُورَاءَ . فَذَكَرَ مِثْلَ حَدِيثِ اللَّيْثِ بْنِ سَعْدٍ سَوَاءً .
Abdullah b. Umar (Allah be pleased with them) reported that the day of 'Ashura was mentioned before the Messenger of Allah (ﷺ) and he narrated a hadith like one (narrated above)
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
Sahih Muslim 1126 is the standard (Abd al-Baqi) number; this narration is #2646 in the MuslimGPT index.
In-book reference: 13:152