What is the ruling on the marriage of a man who marries another woman without the knowledge of his first wife, and is the first wife entitled to demand a divorce from him and dislike him for that?

In summary: A man is permitted to marry up to four women, provided he observes justice in providing maintenance, lodging, and clothing. He is not obligated to inform his first wife or seek her opinion. The wife does not have the right to demand a divorce merely because her husband married another woman, unless she has suffered harm or her rights have been violated. The wife must be patient and not cause harm to her husband, as his marriage to another woman is not a valid reason for divorce unless there is harm.