Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tirmidhi:1636Qutaybah > ʿAbd al-ʿAzīz b. Muḥammad > Suhayl b. Abū Ṣāliḥ from his father > Abū Hurayrah

That the Messenger of Allah ﷺ 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 ﷺ.
الترمذي:١٦٣٦حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ عَنْ أَبِيهِ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ 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 ﷺ نَحْوَ هَذَا

See similar narrations below:

Collected by Nasāʾī, Nasāʾī's Kubrá
nasai:3562ʿAmr b. Yaḥyá b. al-Ḥārith > Maḥbūb b. Mūsá > Abū Isḥāq / al-Fazārī > Suhayl b. Abū Ṣāliḥ from his father > Abū Hurayrah

"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.  

النسائي:٣٥٦٢أَخْبَرَنَا عَمْرُو بْنُ يَحْيَى بْنِ الْحَارِثِ قَالَ حَدَّثَنَا مَحْبُوبُ بْنُ مُوسَى قَالَ حَدَّثَنَا أَبُو إِسْحَاقَ يَعْنِي الْفَزَارِيَّ عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ عَنْ أَبِيهِ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ الْخَيْلُ مَعْقُودٌ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ الْخَيْلُ ثَلاَثَةٌ فَهِيَ لِرَجُلٍ أَجْرٌ وَهِيَ لِرَجُلٍ سَتْرٌ وَهِيَ عَلَى رَجُلٍ وِزْرٌ فَأَمَّا الَّذِي هِيَ لَهُ أَجْرٌ فَالَّذِي يَحْتَبِسُهَا فِي سَبِيلِ اللَّهِ فَيَتَّخِذُهَا لَهُ وَلاَ تُغَيِّبُ فِي بُطُونِهَا شَيْئًا إِلاَّ كُتِبَ لَهُ بِكُلِّ شَىْءٍ غَيَّبَتْ فِي بُطُونِهَا أَجْرٌ وَلَوْ عَرَضَتْ لَهُ مَرْجٌ وَسَاقَ الْحَدِيثَ  

nasai-kubra:4387ʿAmr b. Yaḥyá b. al-Ḥārith > Maḥbūb b. Mūsá > Abū Isḥāq > Suhayl b. Abū Ṣāliḥ from his father > Abū Hurayrah

"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)  

الكبرى للنسائي:٤٣٨٧أَخْبَرَنَا عَمْرُو بْنُ يَحْيَى بْنِ الْحَارِثِ قَالَ حَدَّثَنَا مَحْبُوبُ بْنُ مُوسَى قَالَ حَدَّثَنَا أَبُو إِسْحَاقَ عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ عَنْ أَبِيهِ عَنْ أَبِي هُرَيْرَةَ قَالَ

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