Is a young man breastfed by the mother when she was single and a virgin, and had no milk, considered her son, thereby prohibiting him from marrying her sister?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
Suckling establishes the same prohibitions as lineage, for the Prophet, peace and blessings be upon him, said: "What is prohibited by lineage is prohibited by suckling." The suckling that establishes prohibition consists of five full, satisfying sucklings. If the mother did not suckle the aforementioned young man, there is no harm in him marrying her daughter. What the mother feels as discomfort is merely a form of intrusive thoughts (waswasa).
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/173696
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- Ftawy
- Original fatwa ID
- 173696
- 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.
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- Read the full answer on Ftawy