Sahih al-Bukhari 3955
صحيح البخاري#3955SahihNarrated Al-Bara:I and Ibn `Umar were considered too young to take part in the battle of Badr
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: 64:7