Sunan Abi Dawud 2590
سنن أبي داود#2590Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا سُفْيَانُ، قَالَ حَسِبْتُ أَنِّي سَمِعْتُ يَزِيدَ بْنَ خُصَيْفَةَ، يَذْكُرُ عَنِ السَّائِبِ بْنِ يَزِيدَ، عَنْ رَجُلٍ، قَدْ سَمَّاهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم ظَاهَرَ يَوْمَ أُحُدٍ بَيْنَ دِرْعَيْنِ أَوْ لَبِسَ دِرْعَيْنِ .
Narrated As-Sa'ib ibn Yazid: As-Sa'ib reported on the authority of a man whom he named: The Messenger of Allah (ﷺ) put on two coats of mail during the battle of Uhud as a double protection. (The narrator is doubtful about the word zahara or labisa)
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: 15:114