Is it permissible for me to marry my maternal cousin whose mother did not nurse her, knowing that my mother fully nursed her younger sister?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
If your mother breastfeeds one of her sisters, that sister becomes a sibling to all of your mother's children, and thus, what is unlawful for your blood sisters becomes unlawful for her, due to the Prophet's (peace be upon him) saying: "What is unlawful by lineage is unlawful by fosterage." As for the maternal uncles and aunts who were not breastfed by your mother, it is permissible to marry their sons and daughters.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/58783
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 58783
- 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