Does the paternal aunt's daughter become a foster sister to the questioner and his older brother, bearing in mind that their mother breastfed the paternal aunt's daughter along with their younger sister, while the questioner and his brother were nursed with their mother's first husband's milk?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
If your maternal aunt's daughter was nursed by your mother five full breastfeedings, then she becomes your sister through رضاعة (nursing), and what is prohibited by lineage is also prohibited by nursing. Therefore, she is one of your mahārim (unmarriageable kin).
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/98448
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 98448
- 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