Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ said, "He who keeps a horse for Jihad purposes, having faith in Allah and relying on His Promise, will find that its fodder, drink, droppings and urine will all be credited to him in his Scales on the Day of Resurrection."

[Al-Bukhari].

وعن أبي هريرة رضي الله عنه قال: قال رسول الله ﷺ: "من احتبس فرسًا في سبيل الله إيمانًا بالله وتصديقًا بوعده، فإن شبعه، وروثه، وبوله في ميزانه يوم القيامة” ((رواه البخاري)).