صحیح ابن حبان
Ibn Hibban
كتاب السير
Book of Expeditions
باب الخيل - ذكر البيان بأن الفضل الذي ذكرنا قبل لمرتبط الخيل إنما هو لمن ارتبطها لله جل وعلا وطلب ثوابه لا رياء ولا سمعة ولا قضاء لوطر-
Chapter on Horses - On clarifying that the virtue mentioned is for those who keep horses for Allah, seeking His reward, not for show or personal gain
1 hadith
Hadith 4673
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: "Whoever, believing in Allah, affirming His promise, and hoping for reward, ties a horse in the way of Allah, then its food, its drink, and its dung will be counted as good deeds for that person in his record of deeds on the Day of Resurrection."