Muslim law recognizes the practice of polygamy, which means the practice of having more than one wife at a time.
A Muslim man is permitted to have a maximum of four wives at a time.
However, Courts have held this is not an unrestrained right. If a Muslim man marries a fifth wife, the marriage is not unlawful or invalid but merely, a fasid marriage.
This means that even though the marriage is not a valid marriage to begin with, it can be made valid by the husband by pronouncing talaq on one of his wives and then marrying the fifth wife.
Unlike a Muslim man, a Muslim woman cannot have more than one spouse at a time and this is an unlawful act.0