No, milk siblings cannot marry each other in Islam.
This prohibition stems from the concept of "milk kinship" (Rada'a), which creates relationships similar to those of blood relatives. When a child is nursed by a woman other than their biological mother, a familial bond is established between the child, the wet nurse, and her family. This bond carries specific implications regarding marriage.
Essentially, Islamic jurisprudence considers the child nourished by the wet nurse to be like a biological child of the wet nurse. Therefore:
- The child cannot marry the wet nurse.
- The child cannot marry any of the wet nurse's children (the milk siblings).
- The child cannot marry the wet nurse's parents.
- The child cannot marry the descendants of the wet nurse.
- The child cannot marry the siblings of the wet nurse.
In Summary: The relationship created through breastfeeding has significant implications in Islamic law, specifically regarding marriage. Milk siblings are considered akin to blood siblings and are therefore prohibited from marrying one another.
