Sahih al-Bukhari 3644
صحيح البخاري#3644SahihNarrated Ibn `Umar:Allah's Messenger (ﷺ) said, "There is always goodness in horses till the Day of Resurrection
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: 61:147