Travel and necessary transport may require the use of riding animals. Keeping an animal burdened merely because the rider wants to prolong a conversation is another matter. The word مَنَابِرَ makes this contrast vivid: an animal is not simply furniture for a speaker’s convenience.
Example 1: After a journey, the rider dismounts and allows water and rest.
Example 2: When a discussion will take time, the rider gets down instead of leaving the animal bearing an unnecessary load.
The point is mercy and responsibility, not a blanket prohibition of legitimate riding.