Sahih al-Bukhari 6456
صحيح البخاري#6456SahihNarrated `Aisha:The bed mattress of the Prophet (ﷺ) was made of a leather case stuffed with palm fibres
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: 81:45