Sunan an-Nasa'i, Volume 5, Book 45, Hadith 4855 (DarusSalam) ⓘ
It was narrated from 'Amr bin Shu'aib, from his father, from his grandfather, that the Messenger of Allah said in his khutbah, while he was leaning with his back against the Ka'bah: "The fingers are the same."
أَخْبَرَنِي 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 " .
also referenced under: Hadith 4851 (Reference) & Book 45, Hadith 146 (In-Book)