The daughter of a sister through breastfeeding is forbidden in marriage

Her brother was breastfed by the wife of her maternal uncle; are her uncle’s children mahrams for her?

Can Husband Suck Wife’s Breasts?

A Muslim woman may breastfeed a Christian child

Do her children from breastfeeding have any relationship with her second husband?

Can he marry the daughter of a woman who was breastfed by his mother?

Their father’s wife breastfed a baby girl – is she regarded as their sister?

Each of them breastfed the child of the other; do any rulings result from that?

She is not permissible for him to marry because she is his maternal aunt through breastfeeding (radaa’ah)

He is married to his maternal aunt through breastfeeding