Sahih al-Bukhari 5732
صحيح البخاري#5732SahihNarrated Anas bin Malik:Allah's Messenger (ﷺ) said, "(Death from) plague is martyrdom for every Muslim
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 76:47