Title

Can a person marry his wife's sister's daughter? If he does, is the nikah valid?

Question

1.) Can a person marry his wife's sister's daughter while still married to his wife?

2.) If a person does, then which nikāh is not valid, the one with his wife or the one with his wife's sister's daughter?

Answer

In the Name of Allāh, the Most Gracious, the Most Merciful.

As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.

1.) No, you cannot marry your wife's sister's daughter until you are divorced from your wife and she finishes her iddah or she passes away. [i]

2.) If you do marry your wife's sister's daughter while you are married to your wife, then that 2^nd nikāh will not be valid and any relations with your wife's sister's daughter would be zinā (adultery).

Your nikāh to your wife will not be affected and will remain intact.

And Allāh knows best.

Ml. Sohail Bengali
Chicago, IL (USA)

Concurred by:

Muftī Abrar Mirza
Chicago, IL (USA)

Under the Supervision of Muftī Ebrahim Desai (South Africa)

  قوله : أيهما فرضت إلخ) أي أية واحدة منهما فرضت ذكرا لم يحل للأخرى كالجمع) [i]

بين المرأة وعمتها أو خالتها ، والجمع بين الأم والبنت نسبا أو رضاعا ، وكالجمع بين عمتين أو خالتين كأن يتزوج كل من رجلين أم الآخر ، فيولد لكل منهما بنت فيكون كل من البنتين عمة الأخرى ، أو يتزوج كل منهما بنت الآخر ويولد لهما بنتان ، فكل من البنتين خالة الأخرى

        رد المحتاركتاب النكاح، فصل في المحرمات: ٤/ ١١٦ دار الكتب العلمية

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