Sahih Bukhari
Sahih Bukhari Volume 001, Book 002, Hadith Number 018.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 02. Belief
Narated By Abu Said Al-Khudri : Allah's Apostle said, "A time will come that the best property of a Muslim will be sheep which he will take on the top of mountains and the places of rainfall (valleys) so as to flee with his religion from afflictions."