Sahih al-Bukhari 1505
صحيح البخاري#1505SahihNarrated Abu Sa`id:We used to give one Sa' of barley as Sadaqat-ul-Fitr (per head)
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: 24:105