<P> According to sharia law, Muslims are allowed to practice polygyny . According to the Quran, a man may have up to four legal wives at any one time . </P> <P> The husband is required to treat all wives equally . If a man fears that he will not be able to meet these conditions then he is not allowed more than one wife . </P> <P> "If he fears that he shall not be able to deal justly with the orphans, marry women of your choice, two, or three, or four; but if he fear that he shall not be able to deal justly (with them), then only one, or that which your right hands possess . That will be more suitable, to prevent you from doing injustice ." (Qur'an 4: 3) Yusuf Ali translation . </P> <P> A bride - to - be may include terms in her marriage contract that require monogamy for her husband or require her consent before he marries another wife . </P>

What are the rules of marriage in islam