Sunan an-Nasa'i 4851
سنن النسائي#4851Sahihأَخْبَرَنِي عَبْدُ اللَّهِ بْنُ الْهَيْثَمِ، قَالَ حَدَّثَنَا حَجَّاجٌ، قَالَ حَدَّثَنَا هَمَّامٌ، قَالَ حَدَّثَنَا حُسَيْنٌ الْمُعَلِّمُ، وَابْنُ، جُرَيْجٍ عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ فِي خُطْبَتِهِ وَهُوَ مُسْنِدٌ ظَهْرَهُ إِلَى الْكَعْبَةِ " الأَصَابِعُ سَوَاءٌ " .
It was narrated from 'Amr bin Shu'aib, from his father, from his grandfather, that the Messenger of Allah (ﷺ) said in his khutbah, while he was leaning with his back against the Ka'bah:"The fingers are the same
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: 45:146