Sahih Muslim 2888
صحيح مسلم#2888SahihNubaih b Wahb reported that the eyes of Umar b. Ubaidnllah b. Ma'mar were swollen, and he decided to use antimony. Aban b. 'Uthman forbade him to do so and commanded him to apply aloes on them, and reported on the authority of 'Uthman b. Affan that the Messenger of Allah (ﷺ) had done that
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 15:98