Sunan Abi Dawud 4051
سنن أبي داود#4051SahihNarrated Ali ibn AbuTalib: The Messenger of Allah (ﷺ) forbade me to wear a gold ring, or a Qassi garment or the use purple saddle-cloths
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 34:32