Is a man's marriage to a woman valid if his sister breastfed the fiancée's mother?
Source: FtawySummary from Ftawy's records · added here Oct 24, 2026
Scholars have differed on accepting the testimony of a single nursing woman to establish prohibition (of marriage). The majority do not accept it, while the Hanbalis accept it if the nursing woman is trustworthy, truthful, and just. This is the view given preference for . Therefore, if your fiancé’s sister testifies that she breastfed your mother five full and satisfying times, and she is trustworthy, then your fiancé is not permitted to marry you; because you would be considered in the حكم (ruling/status) of his sister’s daughter through suckling, and what is prohibited by lineage is also prohibited by suckling.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/114038
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 114038
- 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