About the Surah

       You are forbidden to marry (the following four groups.) Firstly, your mothers, your daughters, your sisters, your father’s sisters, your mother’s sisters, your brother’s daughters, your sister’s daughters. Secondly, your foster mothers who gave you suck and your foster suckling sisters (who are your sisters due to suckling milk of their real mother or their foster mother or if she has sucked the milk of your real mother or your foster mother, even if it took place at different times). Thirdly, the mothers of your wives, and daughters of your wives whom you bring up in your household born of your wives with whom (i.e. your wives) you had sexual relations. (Then those daughters are unlawful for you). If, however, you had marriage contract with your wife but did not have sexual relation with her yet, there is no harm in marrying the daughter of such wife. And wives of your sons are also unlawful for you for marriage (this does not include the wives of Islamically adopted sons). It is also unlawful for you to marry two sisters (real or foster) at the same time, except what took place in the past. Indeed, Allah is Very Forgiving, Most Merciful.