Muhammad's wives
Muhammad was monogamous for 25 years. After his first wife Khadija bint Khuwaylid died, he proceeded to marry the wives listed below, and most of them were widows. Muhammad's life is traditionally delineated as two epochs: pre-hijra (emigration) in Mecca, a city in western Arabia, from the year 570 to 622, and post-hijra in Medina, from 622 until his death in 632. All but two of his marriages were contracted after the Hijra (migration to Medina). Of Muhammad's thirteen wives, at least two, Rayhana bint Zayd and Maria al-Qibtiyya, were referred to simply as concubines; however, there is debate among Muslims as to whether these two officially became his wives. Of his thirteen wives, only two bore him children, a fact which has been described as "curious" by Cornell University Professor of Near Eastern Studies David S. Powers.
Polygyny
Muslim women aren't allowed to marry more than one husband at once. However, in the case of a divorce or their husbands' death they can remarry after the completion of Iddah, as divorce is legal in Islamic law. A non-Muslim woman who flees from her non-Muslim husband and accepts Islam can remarry without divorce from her previous husband, as her marriage with non-Muslim husband is Islamically dissolved on her fleeing. A non-Muslim woman captured during war by Muslims, can also remarry, as her marriage with her non-Muslim husband is Islamically dissolved at capture by Muslim soldiers.This permission is given to such women in verse 4:24 of Quran. The verse also emphasizes on transparency, mutual agreement and financial compensation as prerequisites for matrimonial relationship as opposed to prostitution; it says:
Muhammad was monogamously married to Khadija, his first wife, for 25 years, until she died. After her death, he married multiple women, mostly widows, for social and political reasons. He had a total of nine wives, but not all at the same time, depending on the sources in his lifetime. The Qur'an does not give preference in marrying more than one wife. One reason cited for polygyny is that it allows a man to give financial protection to multiple women, who might otherwise not have any support (e.g. widows). However, the wife can set a condition, in the marriage contract, that the husband cannot marry another woman during their marriage. In such a case, the husband cannot marry another woman as long as he is married to his wife. According to traditional Islamic law, each of those wives keeps their property and assets separate; and are paid mahar and maintenance separately by their husband. Usually the wives have little to no contact with each other and lead separate, individual lives in their own houses, and sometimes in different cities, though they all share the same husband.