Sahih al-Bukhari, Hadith 19 ⓘ
Narrated Abu Said Al-Khudri: Allah's Messenger said, "A time will soon come when 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."
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، عَنْ مَالِكٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَبْدِ اللَّهِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ أَبِي صَعْصَعَةَ، عَنْ أَبِيهِ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّهُ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " يُوشِكُ أَنْ يَكُونَ خَيْرَ مَالِ الْمُسْلِمِ غَنَمٌ يَتْبَعُ بِهَا شَعَفَ الْجِبَالِ وَمَوَاقِعَ الْقَطْرِ، يَفِرُّ بِدِينِهِ مِنَ الْفِتَنِ " .
also referenced under: Book 2, Hadith 12 (In-Book) & Volume 1, Book 2, Hadith 18 (USC-MSA)