Sunan an-Nasa'i 5036
سنن النسائي#5036SahihIt was narrated that Abu Sa'eed Al-Khudri said:"The Messenger of Allah [SAW] said: 'Soon the best wealth of a Muslim will be the sheep which follows in the mountain peaks and places where rainfall is to be found, fleeing with his religion from the tribulations
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Bukhari
In-book reference: 47:52