O Son !

If a virginal girl’s body starts to produce milk when she reaches
the age of nine, a baby that she suckles will become her milk-child.
If a woman suckles a three-year-old boy and a one-year-old
girl, a marriage between the two children will be lawful (in Islam).
A person cannot marry the daughter of his sister through the milk
tie or the milk-daugher of his sister through the milk-tie.
It is permissible to marry the (lineal) mother of one’s milksibling
through one’s own mother’s breastfeeding.
It is not permissible to marry one’s mother’s sibling through the
milk-tie.
It is permissible to marry one’s son’s milk-mother. As it is
permissible to marry one’s paternal uncle’s daughter, likewise it is
permissible to marry one’s paternal uncle’s daughter through the
milk-tie.
A person can marry his lineal sibling’s milk-mother or sister
through the milk-tie.
A person can not marry a woman who suckled his mother’s
mother.
He can marry a woman who suckled his sister’s daughter.
It is not permissible to marry one’s milk-mother’s sister.
It is permissible to marry one’s son’s milk-mother’s daughter.
It is not permissible to marry the milk-daughter of one’s sibling
through the milk-tie.
One can not marry one’s brother’s or sister’s daughter through
the milk-tie.
One can marry one’s milk-son’s or milk-daughter’s (lineal)
sister.
A woman can not be taken as a wife by someone who is her
milk-father’s son through another wife.
A woman can be taken as a wife by her milk-mother’s other
husband’s brother if that man is not the source of the lactation that
caused the milk-tie.
In the Hanafî Madhhab, two children breastfed only once (by
the same wet-nurse) will become siblings through milk-tie. The
Shâfi’î Madhhab, on the other, stipulates that they be breastfed (at
least) five times for becoming siblings through the milk-tie, and at
each time they will have to have been fully satisfied.
– 214 –