Jami` at-Tirmidhi, Book 22, Hadith 18 (In-Book) ⓘ
Narrated Abu Hurairah: That the Messenger of Allah said: "The forelocks of horses contain good until the Day of Judgement. The horse is for three (purposes): It is for one man a reward, and it is for one man a shelter (from poverty), and it is from one man a burden. As for the one who acquires it for the cause of Allah and then prepares it for that; it is for him a reward, nothing disappears into its stomach except that Allah writes it for him as a reward." [Abu 'Eisa said:] This Hadith is Hasan Sahih. Malik bin Anas narrated similar to this Hadith from Zaid bin Aslam from Abu Salih from Abu Hurairah, from the Prophet.
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ، عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " الْخَيْلُ مَعْقُودٌ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ الْخَيْلُ لِثَلاَثَةٍ هِيَ لِرَجُلٍ أَجْرٌ وَهِيَ لِرَجُلٍ سِتْرٌ وَهِيَ عَلَى رَجُلٍ وِزْرٌ فَأَمَّا الَّذِي لَهُ أَجْرٌ فَالَّذِي يَتَّخِذُهَا فِي سَبِيلِ اللَّهِ فَيُعِدُّهَا لَهُ هِيَ لَهُ أَجْرٌ لاَ يَغِيبُ فِي بُطُونِهَا شَيْءٌ إِلاَّ كَتَبَ اللَّهُ لَهُ أَجْرًا " . وَفِي الْحَدِيثِ قِصَّةٌ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَقَدْ رَوَى مَالِكُ بْنُ أَنَسٍ عَنْ زَيْدِ بْنِ أَسْلَمَ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ عَنِ النَّبِيِّ صلى الله عليه وسلم نَحْوَ هَذَا .
also referenced under: Hadith 1636 (Reference) & Volume 3, Book 20, Hadith 1636 (DarusSalam)