Sahih Muslim 1915
صحيح مسلم#1915Sahihوَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ قَالَ ابْنُ الْمُثَنَّى حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، عَنِ الأَسْوَدِ، عَنْ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم أَنَّهُ كَانَ يَقْرَأُ هَذَا الْحَرْفَ " فَهَلْ مِنْ مُدَّكِرٍ " .
Ishaq is reported to have said on the authority of Aswad who quoted on the authority of 'Abdullah b. Mas'ud that the Messenger of Allah (ﷺ) used to recite these words as (fahal min muddakir)
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:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:343