Sahih al-Bukhari 3660
صحيح البخاري#3660SahihNarrated `Ammar:I saw Allah's Messenger (ﷺ) and there was none with him but five slaves, two women and Abu Bakr (i.e. those were the only converts to Islam then)
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: 62:12