Sahih Muslim 929
صحيح مسلم#929Sahihحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا حُمَيْدُ بْنُ عَبْدِ الرَّحْمَنِ الرُّؤَاسِيُّ، عَنْ أَبِيهِ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ صَلَّى بِنَا رَسُولُ اللَّهِ صلى الله عليه وسلم وَأَبُو بَكْرٍ خَلْفَهُ فَإِذَا كَبَّرَ رَسُولُ اللَّهِ صلى الله عليه وسلم كَبَّرَ أَبُو بَكْرٍ لِيُسْمِعَنَا . ثُمَّ ذَكَرَ نَحْوَ حَدِيثِ اللَّيْثِ .
Jabir said:The Messenger of Allah (ﷺ) led the prayer and Abu Bakr was behind him. When the Messenger of Allah (ﷺ) recited the takbir, Abu Bakr also recited (it) in order to make it audible to us. And the rest of the hadith is like one transmitted by Laith
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: 4:91