Issue No. 2120- A man cannot marry his wife’s nieces from suckling without her permission, and also the obligatory precaution is that if (God forbid) a person commits sodomy with a boy, he should not marry the boy’s mother, daughter and sister from suckling.
Issue No. 2122- A man cannot marry two sisters although they may be sisters by means of sucking milk. In case however, he marries two women and understands later that they are sisters, the first marriage will be valid, and the second will be void, and if he married them at the same time, both the marriages will be void.
Issue No. 2123- If a woman suckles the following persons from her husband’s milk, her husband does not become haram to her, although it is better for her not to do so.1- Her own brother and sister.2- Her own paternal and maternal uncle and aunt.3- The children of her paternal and maternal uncles.4- Her own nephew (brother’s son).5- The brother or sister of her husband.6- The children of her own sister or children of her husband’s sister.7- The paternal and maternal uncles or aunts of her husband.8- The grandchildren of another wife of her husband.
Issue No. 2124- If a woman suckles the paternal aunt's daughter or maternal aunt's daughter of a man she (the woman who suckles) does not become maḥram to that man. However, the recommended precaution is that he should refrain from marrying that woman.
Issue No. 2126- There is no one better and worthier than a child’s mother to suckle him, and it is better that she does not claim any wages from her husband for suckling the child. However, she is entitled to do so, and if the mother demands more wages as compared with a wet nurse, her husband can entrust his child to the wet nurse.
Issue No. 2128- It is recommended that a woman avoids suckling any and every child, because it is possible that she may forget which of them she has suckled, and later two persons who are maḥram may contract marriage. Especially at the present time that because of the availability of baby formula and the like there is less need to suckle other children.
Issue No. 2129- It is recommended that people who become relatives because of suckling respect one another. However, they do not inherit from one another and do not enjoy the legal rights which relatives enjoy over one another.
Issue No. 2130- It is recommended that if possible, one should breastfeed her child for two full years.
Issue No. 2131- A woman may suckle the child of another person without the permission of her husband provided that the right of the husband is not in any way violated.
Issue No. 2132- If a person wishes for his sister-in-law (his brother’s wife) to become his maḥram, he can contract a temporary marriage with a suckling girl with the permission of her legal guardian and at the same time his sister-in-law should breastfeed her fully. And as an obligatory precaution, the period of the temporary marriage should be long enough to include the time she is able to derive sexual pleasure, and that such a marriage should also be in the interest of the girl.
Issue No. 2133- Suckling a child which becomes the cause of being maḥram can be established by the following two ways:1- A number of persons whose word is reliable say so.2- When two just men or four just women testify to it. Rather, the obligatory precaution is that, if one just man and one just woman testify, it will be sufficient. However, the witnesses should tell the conditions of suckling. For example, they should say that they had witnessed that a certain child was suckled fully by a certain woman for fifteen times with the conditions that were mentioned in Issue No. 2116. In case however, we know that they are aware of all those conditions and they agree with each other in this regard, then it will not be necessary for them to explain them.
Issue No. 2134- If it is doubted whether or not a child has sucked the quantity of milk which causes becoming maḥram, the child does not become maḥram, and one needs to become certain of it.
