Is it permissible for the son of a woman who breastfed her niece to marry the younger sister of that girl?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
A woman nursing her brother's daughter makes her a full sister (from the mother's side) to all of her children. The state of mahramiyyah (prohibition of marriage) does not extend to the rest of her brothers and sisters, nor to their paternal aunt's children. Therefore, her male children are permitted to marry any of their maternal aunt's daughters they wish.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/58796
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 58796
- Added here
- . This is when the answer was added to El Fatwa, not the fatwa's date.
- Text
- Summary from Ftawy's records, reviewed by El Fatwa's sharia committee.
- Read the full ruling
- Read the full answer on Ftawy