Sahih al-Bukhari 6495
صحيح البخاري#6495SahihNarrated Abu Sa`id:I heard from the Prophet (ﷺ) saying, "There will come a time upon the people when the best property of a Muslim will be sheep which he will take to the tops of mountains and to the places of rainfall, run away with his religion (in order to save it) from afflictions
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: 81:84