Is it permissible for the elder brother to marry his maternal uncle's daughter, whom his mother breastfed along with his younger brother?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
It is not permissible for you to marry your cousin (daughter of your maternal uncle) because she was suckled by your mother, thus becoming your sister through breastfeeding. It is forbidden for you to marry her, based on the Almighty’s saying: "And your sisters through suckling" (Quran 4:23), and the Prophet, peace and blessings be upon him, said: "What is forbidden by lineage is also forbidden by suckling." As for her other sister, it is permissible for you to marry her.
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/130873
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 130873
- 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