Sunan Ibn Majah 1039
سنن ابن ماجه#1039Sahihحَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا يَحْيَى بْنُ آدَمَ، حَدَّثَنَا زُهَيْرٌ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ، قَالَ لَقَدْ رَأَيْنَا رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يُصَلِّي فِي النَّعْلَيْنِ وَالْخُفَّيْنِ .
It was narrated that ‘Abdullah said:“We saw the Messenger of Allah (ﷺ) performing prayer wearing sandals and leather slippers.”
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:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih Lighairihi
Zubair Ali ZaiDaif
In-book reference: 5:237