A man has a sister and another man has a daughter; the first married the second’s daughter and the second married the first’s sister. Is it permissible for the children of these people to marry one another?
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The questioner : A man has a sister and another man has a daughter; the first married the second’s daughter and the second married the first’s sister. Is it permissible for the children of these people to marry one another?
The Shaykh : It is well known that a person does not marry his sister. If a father marries a woman and she gives birth to a daughter, then this daughter becomes the sister of his son, and he cannot marry her because she is his father’s daughter. Accordingly, we say that whenever the daughter is the sister of one of the married parties, it is not permissible for him to marry her. This issue is detailed in the *Fatawa al-Bab al-Maftuh*; it was first written incorrectly, and then a second edition was printed and corrected.
The Shaykh : It is well known that a person does not marry his sister. If a father marries a woman and she gives birth to a daughter, then this daughter becomes the sister of his son, and he cannot marry her because she is his father’s daughter. Accordingly, we say that whenever the daughter is the sister of one of the married parties, it is not permissible for him to marry her. This issue is detailed in the *Fatawa al-Bab al-Maftuh*; it was first written incorrectly, and then a second edition was printed and corrected.