A person has four wives. Is he permitted to marry a fifth wife
if one of the four wives is sick or old and does not need a husband (Part No. 18; Page No. 259) or this is not permissible?
It is Haram (prohibited) for him to marry a fifth wife as long as he is already married to four, even if one of them is chronically ill or past child-bearing age. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.