Is it permissible to sell and buy pets, such as cats, and is it permissible to name them with human names?

It is not permissible to buy or sell cats. It is permissible to buy and sell pets that are allowed to be kept, with the exception of hunting and guard dogs, regarding which there is a difference of opinion. It is permissible to name animals with human names, except for the names of prophets, companions, and sacred places; due to the disparagement and contempt involved in doing so.