Narrated Abu Wahb al-Jushami,: The Messenger of Allah ﷺ said: Tie the horses, rub down their forelocks and their buttocks (or he said: Their rumps), and put things on their necks, but do not put bowstrings.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
The horse is a loving animal.
And due to its usefulness in jihad, it is beloved.
Therefore, it should be well cared for.
And affection and love should be shown to it.
Through this action, the animal becomes happy.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 2553