Bukhari

Hadith Commentary:
In this too there is a prophecy which has come true word for word, and this is precisely the translation of the chapter heading.
Even today, despite the abundance of modern weaponry, the horse still holds importance in the army.

Hadith Commentary:
Benefits and Issues:
From the ahadith of this chapter, it is established that keeping weapons of war individually for fighting against the enemies of the religion and the Muslims is a source of goodness, blessing, reward, and spoils. Furthermore, horses will continue to be used for military needs until the Day of Judgment, and the goodness and blessing in them is due to their use in jihad. However, if they are kept for pride and showing off, they can also become a cause of misfortune and harm.

Benefits and Issues:
That is, perpetual goodness and blessing have been placed in the forelocks of the horses of the mujahideen.
The explanation of this goodness and blessing of the horses is given in other narrations as reward and war booty. (Sahih al-Bukhari, Book of Jihad, Chapter: Jihad continues with the righteous and the wicked, Hadith: 2852)
That is, by performing jihad on horses, one attains reward as well as war booty, and this benefit will continue until the Day of Judgment.
Even today, in the era of Kalashnikovs and tanks, horses are very useful, especially in mountainous and forested regions.

Hadith Authentication: [وأخرجه البخاري 2849، ومسلم 96/1871، من حديث مالك به]
Jurisprudential Points:
➊ Keeping horses and making other preparations for jihad with the intention of striving in the path of Allah is a deed of great reward and merit.
➋ This hadith is among the signs of prophethood.
➌ Jihad will continue until the Day of Judgment.
➍ In this hadith, "khayr" (good) refers to reward and war booty.
➎ (In jihad) the horse is superior to other animals. Also see: [ح 178]