Sunan an-Nasa'i 906
سنن النسائي#906Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ عَلِيِّ بْنِ الْحَسَنِ بْنِ شَقِيقٍ، قَالَ سَمِعْتُ أَبِي يَقُولُ، أَنْبَأَنَا أَبُو حَمْزَةَ، عَنْ مَنْصُورِ بْنِ زَاذَانَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ صَلَّى بِنَا رَسُولُ اللَّهِ صلى الله عليه وسلم فَلَمْ يُسْمِعْنَا قِرَاءَةَ { بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيمِ } وَصَلَّى بِنَا أَبُو بَكْرٍ وَعُمَرُ فَلَمْ نَسْمَعْهَا مِنْهُمَا .
It was narrated that Anas bin Malik said:"The Messenger of Allah (ﷺ) led us in prayer, and we did not hear him recite: In the Name of Allah, the Most Gracious, the Most Merciful. And Abu Bakr and Umar led us in prayer and we did not hear it from them either
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: 11:31