prohibited Muslim women to marry Non-Muslim men in interfaith marriages, in various parts of the world interfaith marriages between Muslim women and Non-Muslim men take place at substantial rates, contravening the traditional Sunni understanding of ijma. For example, in the United States, about 10% of Muslim women are married to Non-Muslim men. The tradition of reformist and progressive Islam does permit marriage between Muslim women and Non-Muslim men; Islamic scholars opining this view include Khaleel Mohammed, Hassan Al-Turabi, among others. Restrictions on marriage Polygyny Muslim men are allowed to practise polygyny, that is, they can have more than one wife at the same time, up to four, per Sura 4 Verse 3. Polyandry, the practice of a woman having more than one husband, by contrast, is not permitted. One of the main reasons for this would be the potential questioning of paternal lineage. The Quran states: (30:21): “And among His signs is that He has created for you, from your selves, mates, that you may incline towards them and find rest in them, and He has engendered love and tenderness between you. Surely in this are signs for people who reflect.” Permissible age Sahih Muslim permits marriage once a person reaches sexual maturity (i.e.: menstruation, voice changing, wet dreams) (baligh). Sexual maturity in Sharia law is typically understood to mean puberty. At the same time, intercourse is forbidden until they are able to physically bear it. Other religions Traditionally, Muslim jurists hold that Muslim women may only enter into marriage with Muslim men. The Qur'an explicitly allows Muslim men to marry chaste women of the People of the Book, a term which includes Jews and Christians. Arranged and forced marriages An engagement may be arranged between families for their children, but Islamic requirements for a legal marriage include the requirement that both parties, bride, groom and guardian for the bride (wali), give their legal consent. A marriage without the consent of the bride or performed under coercion is illegal according to the majority of scholars. If a girl has not attained the age of puberty, the vast majority of scholars hold that she cannot be married; and many stipulate that it must be in her best interest in order to be considered a valid marriage. There is some dispute as to whether or not an under-age bride can leave her family's custody and be transferred to her husband's custody, if