Sunan an-Nasa'i 776
سنن النسائي#776Sahihأَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ، وَشُعَيْبُ بْنُ يُوسُفَ، عَنْ يَحْيَى، عَنِ ابْنِ جُرَيْجٍ، قَالَ أَخْبَرَنِي مُحَمَّدُ بْنُ عَبَّادٍ، عَنْ عَبْدِ اللَّهِ بْنِ سُفْيَانَ، عَنْ عَبْدِ اللَّهِ بْنِ السَّائِبِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم صَلَّى يَوْمَ الْفَتْحِ فَوَضَعَ نَعْلَيْهِ عَنْ يَسَارِهِ .
It was narrated from Abdullah bin As Saib that the Messenger of Allah(ﷺ) prayed on the day of Conquest (of Makkah), and he put his sandals to his left
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:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 9:35