Sahih al-Bukhari 4743
صحيح البخاري#4743SahihNarrated Qais bin Ubad:Abu Dharr used to take an oath confirming that the Verse: 'These two opponents (believers, and disbelievers) dispute with each other about their Lord.' (22.19) was Revealed in connection with Hamza and his two companions and `Utbah and his two companions on the day when they went out to 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: 65:265