Virtues and Merits of the Prophet (pbuh) and his Companions
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي سَلَمَةَ بْنِ الْمَاجِشُونِ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي صَعْصَعَةَ، عَنْ أَبِيهِ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ـ رضى الله عنه ـ قَالَ قَالَ لِي إِنِّي أَرَاكَ تُحِبُّ الْغَنَمَ، وَتَتَّخِذُهَا، فَأَصْلِحْهَا وَأَصْلِحْ رُعَامَهَا، فَإِنِّي سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ " يَأْتِي عَلَى النَّاسِ زَمَانٌ تَكُونُ الْغَنَمُ فِيهِ خَيْرَ مَالِ الْمُسْلِمِ، يَتْبَعُ بِهَا شَعَفَ الْجِبَالِ ـ أَوْ سَعَفَ الْجِبَالِ ـ فِي مَوَاقِعِ الْقَطْرِ، يَفِرُّ بِدِينِهِ مِنَ الْفِتَنِ ".Narrated Sasaa:Abu Sa`id Al-Khudri said to me, "I notice that you like sheep and you keep them; so take care of them and their food, for I have heard Allah's Messenger (ﷺ) saying, 'A time will come upon the people when the best of a Muslim's property will be sheep, which he will take to the tops of mountains and to the places of rain-falls to run away with his religion in order to save it from afflictions
From Sahih al-Bukhari, whose reports the scholars accept as authentic.