Is committing adultery with the daughter of one's wife's sister or brother considered like committing adultery with a mahram or with a non-mahram?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
The wife's niece and her sister are not considered unmarriageable kin (). Adultery, in general, is one of the gravest sins that incurs Allah's wrath. Its sinfulness is even more severe if committed by a married person. If it occurs with the wife's relatives, such as her niece or sister, this indicates baseness and depravity.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/125729
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 125729
- 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