# Interfaith marriage in Islam

In traditionalist interpretations of Islam, the permissibility for Muslims to engage in interfaith marriages is outlined by the Quran: it is permissible, albeit discouraged, for a Muslim man to marry Non-Muslim women as long as they are identified as being part of the "People of the Book" (Christians, Jews, and Sabians) and it is not permissible for a Muslim woman to marry a Non-Muslim man. Thus, traditional interpretations of Islamic law do recognize the legitimacy of a Muslim man's marriage (nikaah) if he marries a Non-Muslim woman, but only if she is Jewish, Christian, or Sabian. On the other hand, a Muslim woman may not marry a Non-Muslim man. Additionally, it is required in Islam that the children of an interfaith marriage be Muslim.
The tradition of reformist and progressive Islam, on the other hand, permits marriages between Muslim women and Non-Muslim men; Islamic scholars opining this view include Guyanese-American professor Khaleel Mohammed, American activist Daayiee Abdullah, and Sudanese politician Hassan al-Turabi, among others.
In some societies outside of Muslim-controlled territory, interfaith marriages between Muslims and Non-Muslims are not uncommon, including marriages that, in Sunni Islam, contradict the historic understanding of ijmāʿ (the consensus of fuqāha) as to the bounds of legitimacy.

## Islamic tradition
### Permissibility and conditions

In general, while Muslim men are allowed to marry non-Muslim women, the Quran instructs them to take measures to avoid such acts and instead marry Muslim women. No such allowances are made for Muslim women, for whom interfaith marriage is strictly forbidden. Muslim men who do engage in an interfaith marriage must ensure that the non-Muslim woman in question can be identified as being among the "People of the Book" and is actively religious; if she renounces her faith and does not convert to Islam, the marriage is automatically invalidated. Due to the complications associated with marrying a non-Muslim woman—particularly the possibility that the couple's children may choose to follow the wife's faith instead of Islam or be irreligious altogether—many Islamic scholars discourage or outright forbid all interfaith marriages.

#### For Muslim women

Although the Quran contains no explicit prohibition for Muslim women marrying non-Muslim men, some scholars argue that the fact that it only mentions the allowance for Muslim men means that Muslim women are prohibited from interfaith marriages. Kuwaiti-American professor Khaled Abou el-Fadl writes that he did not find a single Islamic scholar in classical jurisprudence who disagreed with the prohibition of marriage between Muslim women and non-Muslim men.

### Conduct with Christian women

In the case of a Christian–Muslim marriage, which is to be contracted only after permission from the Christian party, the Christian wife is not to be prevented from attending church nor from engaging in her own prayer and worship. This conduct is according to the Ashtiname of Muhammad, which was signed between Muhammad and Saint Catherine's Monastery in 623 CE.

## Modern practice
### Prevalence and attitudes

Despite Sunni Islam prohibiting Muslim women from marrying non-Muslim men, interfaith marriages between Muslim women and non-Muslim men take place at substantial rates, contravening the traditional Sunni understanding of ijmāʿ. The modern tradition of reformist and progressive Islam has also come to permit marriages between Muslim women and non-Muslim men, with Islamic scholars opining this view including Khaleel Mohammed, Daayiee Abdullah, and Hassan al-Turabi, among others. In the United States, for example, about 10% of Muslim women are married to non-Muslim men, and about one in ten Muslims are married to non-Muslims overall, including about one in six Muslims under the age of 40 and about 20% of Muslims who describe themselves as less devoutly religious.
Recent studies on interfaith marriages in Muslim-majority countries have shown that parental attitudes remain more negative toward marriage of a daughter as compared to a son, and that "stronger religious belief was associated with more negative attitudes"; this was less in the case of Muslims who perceived Islam and Christianity as more similar than distinct.

### Legality in Muslim-majority countries

In most Arab countries, interfaith marriages are allowed as long as the husband is Muslim and the wife is Jewish or Christian. There are, however, some Arab countries that do not enforce such laws: in Lebanon, there is no civil personal status law and marriages are performed according to the religion of the spouses; and it has been legal for women in Tunisia to marry men of any faith or of no faith since 2017.
Turkey allows marriages between Muslim women and non-Muslim men through secular laws. In Malaysia, a non-Muslim must convert to Islam in order to marry a Muslim and any children produced from unions involving a Muslim are automatically registered as Muslims at birth.