❖ Shariah Ruling on Marrying One’s Daughter to Her Maternal Uncle’s Son ❖
Answered by: Fadīlat al-Shaykh ʿAbd al-Wakīl Nāṣir Ḥafiẓahullāh & Fadīlat al-ʿĀlim ʿUmar Atharī Ḥafiẓahullāh
A man wishes to marry his daughter to his real maternal uncle’s son (i.e., her cousin). Is this permissible in Islam?
From a Sharʿī perspective, there is no prohibition or objection to this marriage.
Marriage between first cousins, including maternal uncle’s son, is permissible and has no inherent legal flaw.
However, if the boy and girl are related through riḍāʿah (fosterage)—
i.e., if they were breastfed by the same woman, making them foster siblings (رضاعی بہن بھائی)—
then such a marriage would be impermissible, as Islam forbids marriage between foster siblings just as it forbids it between biological siblings.
➤ Marriage to a maternal uncle’s son is permissible.
➤ Ensure there is no foster (riḍāʿah) relationship between the two.
➤ If foster ties exist, nikāḥ is invalid.
Answered by: Fadīlat al-Shaykh ʿAbd al-Wakīl Nāṣir Ḥafiẓahullāh & Fadīlat al-ʿĀlim ʿUmar Atharī Ḥafiẓahullāh
❀ Question:
A man wishes to marry his daughter to his real maternal uncle’s son (i.e., her cousin). Is this permissible in Islam?
✔ Answer:
From a Sharʿī perspective, there is no prohibition or objection to this marriage.
Marriage between first cousins, including maternal uncle’s son, is permissible and has no inherent legal flaw.
✿ Important Exception:
However, if the boy and girl are related through riḍāʿah (fosterage)—
i.e., if they were breastfed by the same woman, making them foster siblings (رضاعی بہن بھائی)—
then such a marriage would be impermissible, as Islam forbids marriage between foster siblings just as it forbids it between biological siblings.
✔ Summary:
➤ Marriage to a maternal uncle’s son is permissible.
➤ Ensure there is no foster (riḍāʿah) relationship between the two.
➤ If foster ties exist, nikāḥ is invalid.
