Does the son of my wife's son become a brother to my wife through رضاعة (رضاع, suckling), and محرم (unmarriageable kin) to my daughter, making it permissible for her to uncover in front of him, if my wife's mother (his grandmother) breastfed him more than five times?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
If the boy becomes a brother to your wife through suckling, then he is an uncle to your children from this wife. Therefore, it is permissible for your daughter from this wife to show him what she shows to her mahrams. The evidence for this is the Prophet, peace and blessings be upon him, said: "What is forbidden by lineage is also forbidden by suckling." And a sister's daughter is a forbidden relative by lineage, so a sister's daughter by suckling is also forbidden. The suckling that makes one a is five or more sucklings within the first two years of life.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/6176
Where this answer came from
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- Ftawy
- Original fatwa ID
- 6176
- 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