Sahih al-Bukhari 4820
صحيح البخاري#4820SahihNarrated `Abdullah:Five things have passed, i.e. the smoke, the defeat of the Romans, the splitting of the moon, Al-Batsha (the defeat of the infidels in the battle of Badr) and Al-Lizam (the punishment)
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: 65:342