"I was sitting with the Messenger of Allah when a man said: 'O Messenger of Allah! The people have lost interest in horses and put down their weapons, and they say there is no Jihad, and that war has ended.' The Messenger of Allah turned to face him and said: 'They are lying, now the fighting is to come. There will always be a group among my Ummah who will fight for the truth, for whom Allah will cause some people to deviate, and grant them provision from them, until the Hour begins and until the promise of Allah comes. Goodness is tied to the forelocks of horses until the Day of Resurrection. It has been revealed to me that I am going to die and will not stay long, and you will follow me group after group, striking one another's necks. And the place of safety for the believers is Ash-Sham.'" (Using translation from Nasāʾī 3561)  

كُنْتُ جَالِسًا عِنْدَ رَسُولِ اللهِ ﷺ فَقَالَ رَجُلٌ يَا رَسُولَ اللهِ أَذَالَ النَّاسُ الْخَيْلَ وَوَضَعُوا السِّلَاحَ وَقَالُوا لَا جِهَادَ قَدْ وَضَعَتِ الْحَرْبُ أَوْزَارَهَا فَأَقْبَلَ رَسُولُ اللهِ ﷺ بِوَجْهِهِ فَقَالَ «كَذَبُوا الْآنَ جَاءَ الْقِتَالُ وَلَا يَزَالُ مِنْ أُمَّتِي أَمَةٌ يُقَاتِلُونَ عَلَى الْحَقِّ وَيُزِيغُ اللهُ لَهُمْ قُلُوبَ أَقْوَامٍ وَيَرْزُقُهُمْ مِنْهُمْ حَتَّى تَقُومَ السَّاعَةُ أَوْ حَتَّى يَأْتِيَ وَعْدُ اللهِ وَالْخَيْلُ مَعْقُودٌ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ وَهُوَ يُوحِي إِلَيَّ أَنِّي مَقْبُوضٌ غَيْرُ مُلَبَّثٍ وَأَنْتُمْ مُتَّبِعُونِي أَفْنَادًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ وَعُقْرُ دَارِ الْمُؤْمِنِينَ الشَّامُ»  

"The Messenger of Allah said: 'There is goodness tied to the forelocks of horses until the Day of Resurrection. And horses are of three types: Those that bring reward to man, those that are a means of protection for a man, and those that are a burden (of sin) for a man. As for those that bring reward, they are kept for the cause of Allah and for Jihad. No fodder enters their stomach but for everything that enters their stomachs, reward is written for him, even if he puts them out to pasture.'" And he quoted the Hadith. (Using translation from Nasāʾī 3562)  

قَالَ رَسُولُ اللهِ ﷺ «الْخَيْلُ مَعْقُودٌ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ الْخَيْلُ ثَلَاثَةٌ فَهِيَ لِرَجُلٍ أَجْرٌ وَهِيَ لِرَجُلٍ سِتْرٌ وَهِيَ عَلَى رَجُلٍ وِزْرٌ فَأَمَّا الَّتِي هِيَ لَهُ أَجْرٌ فَالَّذِي يَحْتَسِبُهَا فِي سَبِيلِ اللهِ وَيَتَّخِذُهَا لَهُ وَلَا تُغَيِّبُ فِي بُطُونِهَا شَيْئًا إِلَّا كُتِبَ لَهُ بِكُلِّ شَيْءٍ غُيِّبَتْ فِي بُطُونِهَا أَجْرٌ وَلَوْ عَرَضَ لَهَا مَرْجٌ» وَسَاقَ الْحَدِيثَ  

Messenger of Allah ﷺ said, "Keeping horses may be a source of reward to some (man), a shelter to another (i.e. means of earning one's living), or a burden to a third. He to whom the horse will be a source of reward is the one who keeps it in Allah's Cause (prepare it for holy battles) and ties it by a long rope in a pasture (or a garden). He will get a reward equal to what its long rope allows it to eat in the pasture or the garden, and if that horse breaks its rope and crosses one or two hills, then all its footsteps and its dung will be counted as good deeds for its owner; and if it passes by a river and drinks from it, then that will also be regarded as a good deed for its owner even if he has had no intention of watering it then. Horses are a shelter from poverty to the second person who keeps horses for earning his living so as not to ask others, and at the same time he gives Allah's right (i.e. rakʿat) (from the wealth he earns through using them in trading etc.,) and does not overburden them. He who keeps horses just out of pride and for showing off and as a means of harming the Muslims, his horses will be a source of sins to him." When Messenger of Allah ﷺ was asked about donkeys, he replied, "Nothing particular was revealed to me regarding them except the general unique verse which is applicable to everything: "Whoever does goodness equal to the weight of an atom (or small ant) shall see it (its reward) on the Day of Resurrection." (Using translation from Bukhārī 2371)  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «الْخَيْلُ لِرَجُلٍ أَجْرٌ وَلِرَجُلٍ سِتْرٌ وَعَلَى رَجُلٍ وِزْرٌ فَأَمَّا الَّذِي هِيَ لَهُ أَجْرٌ فَرَجُلٌ رَبَطَهَا فِي سَبِيلِ اللهِ فَأَطَالَ لَهَا بِمَرْجٍ أَوْ رَوْضَةٍ فَمَا أَصَابَتْ فِي طِيَلَهَا ذَلِكَ مِنَ الْمَرْجِ أَوِ الرَّوْضَةِ كَانَ لَهُ حَسَنَاتٌ وَلَوْ أَنَّهَا قَطَعَتْ طِيَلَهَا ذَلِكَ فَاسْتَنَّتْ شَرَفًا أَوْ شَرَفَيْنِ كَانَتْ آثَارُهَا فِي حَدِيثِ الْحَارِثِ وَأَرْوَاثُهَا حَسَنَاتٌ لَهُ وَلَوْ أَنَّهَا مَرَّتْ بِنَهَرٍ فَشَرِبَتْ مِنْهُ وَلَمْ يُرِدْ أَنْ يَسْقِيَ كَانَ ذَلِكَ حَسَنَاتٍ فَهِيَ لَهُ أَجْرٌ وَرَجُلٌ رَبَطَهَا تَغَنِّيًا وَتَعَفُّفًا وَلَمْ يَنْسَ حَقَّ اللهِ فِي رِقَابِهَا وَلَا ظُهُورِهَا فَهِيَ لِذَلِكَ سِتْرٌ وَرَجُلٌ رَبَطَهَا فَخْرًا وَرِيَاءً وَنِوَاءً لِأَهْلِ الْإِسْلَامِ فَهِيَ عَلَى ذَلِكَ وِزْرٌ» وَسُئِلَ النَّبِيُّ ﷺ عَنِ الْحَمِيرِ فَقَالَ لَمْ يَنْزِلْ عَلَيَّ فِيهَا شَيْءٌ إِلَّا هَذِهِ الْآيَةُ الْجَامِعَةُ الْفَاذَّةُ {فَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ خَيْرًا يَرَهُ وَمَنْ يَعْمَلْ مِثْقَالَ ذَرَّةٍ شَرًّا يَرَهُ} [الزلزلة 8]