Is the wife's sister forbidden to the husband temporarily until the wife's death or divorce, and does the same ruling apply to the brother and his brother's wife?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
Allah has forbidden combining two sisters in marriage, or a woman with her paternal aunt, or her maternal aunt, or her brother's daughter, or her sister's daughter; out of a concern for maintaining kinship ties. Therefore, it is not permissible for a man to marry his wife's sister or any other temporarily forbidden woman, except after her death or an irrevocable divorce. As for a brother's wife, she is not permissible for his brother except after her husband's death or an irrevocable divorce and the completion of her (waiting period).
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/38510
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 38510
- 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