Is it permissible for the son of the young man (I) to marry the girl (X) who was breastfed along with his mother's younger brother by his paternal grandfather's second wife?
The girl who was suckled by your grandfather's wife with his milk is considered your maternal aunt through suckling, and therefore it is impermissible for you to marry her.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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