Is the husband’s mother a mahram to the sons of his wife?

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Check below answers in case you are looking for other related questions:
He committed an immoral act with his wife’s daughter
His half-sister from his father has a half-sister from her mother. Is it permissible for him to marry her?

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Related Answers:
It is not permissible to marry a zaani or zaaniyah unless they have repented
Is it permissible to marry a Yazidi woman?
Is it permissible to marry two sisters from one father at the same time?
He committed an immoral act with his wife’s daughter
His half-sister from his father has a half-sister from her mother. Is it permissible for him to marry her?

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