Sunan an-Nasa'i 4254
سنن النسائي#4254Sahihأَخْبَرَنِي عَمْرُو بْنُ عُثْمَانَ، قَالَ حَدَّثَنَا بَقِيَّةُ، عَنْ بَحِيرٍ، عَنْ خَالِدِ بْنِ مَعْدَانَ، عَنِ الْمِقْدَامِ بْنِ مَعْدِيكَرِبَ، قَالَ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم عَنِ الْحَرِيرِ وَالذَّهَبِ وَمَيَاثِرِ النُّمُورِ .
It was narrated that Al-Miqdam bin Ma di Karib said:"The Messenger of Allah forbade silk, gold and saddlecloths (Miyathir) made of leopard skin
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 ZaiHasan
In-book reference: 41:33