Is it necessary to divorce the second wife to appease the first wife, who has filed for divorce, knowing that the first wife harbors animosity towards the husband's family, and the husband is emotionally inclined and attached to the first wife?

It is forbidden for the first wife to ask for the divorce of her co-wife, due to the saying of the Prophet, peace and blessings be upon him: "It is not lawful for a woman to ask for the divorce of her sister (co-wife) in order to empty her plate (i.e., take all of her husband's attention and resources), for she will only have what has been decreed for her."

The questioner is advised not to divorce his second wife. Rather, he should strive to reconcile with the first wife, unite the two wives, and be just between them. If he fears that he will not be able to be just, then it is not permissible for him to marry more than one woman.