Sahih Muslim 845
صحيح مسلم#845Sahihحَدَّثَنِي أَبُو كُرَيْبٍ، مُحَمَّدُ بْنُ الْعَلاَءِ الْهَمْدَانِيُّ حَدَّثَنَا خَالِدٌ، - يَعْنِي ابْنَ مَخْلَدٍ - عَنْ مُحَمَّدِ بْنِ جَعْفَرٍ، حَدَّثَنَا هِشَامٌ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ كَانَ ابْنُ أُمِّ مَكْتُومٍ يُؤَذِّنُ لِرَسُولِ اللَّهِ صلى الله عليه وسلم وَهُوَ أَعْمَى .
A'isha reported:Ibn Umm Maktum used to pronounce Adhan at the behest of the Messenger of Allah (ﷺ) (despite the fact) that he was blind
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: 4:9