The task of fetching and carrying stuff was allocated to the dog. It was the obligation allocated to the ox to carry the yokes on his neck and plow the field.

The camel lived in the center of the desert for not wanting to work. In ate sticks, thorns, and pickles, it said 'Humph!' and nothing more when someone spoke to it.

All three animals, the dog, the horse, and the ox were angry because they were asked to do additional job while the camel was doing no job at all.

The Djinn that the horse was complaining against the camel because he was responsible for all deserts and knew all that was going on in relation to his deserts.