The Prophet (may Allah's peace and blessings be upon him) saw a camel whose belly was touched to its back because of starvation, so he ordered kindness and gentleness in treating animals. It is incumbent upon a person to be kind to animals by not overburdening them beyond their ability, and not neglecting to feed them sufficient food and drink. So, when one rides them, let them be fit for riding, and when eats them, let them be fit for eating.