Ruling on a woman taking from her father's money if it is usury or interest

Question:
A message was received for the program from one of the female listeners, and we have previously presented part of her questions. She is the sister Umm Muhammad bint Ma'ali. Our sister is asking about a situation her mother is suffering from, which is that she takes from her father's money, and he deals in usury or interest. She is asking about the ruling, if you would be so kind, Shaykh Abdul Aziz.

Answer:
If she knows that what she takes from the money of usury or interest is not permissible for her to do, that is one matter. But if he has mixed assets, and she does not know whether what she receives in her hand is from usury or interest or something else, then there is no blame on her.
And being scrupulous about it is better if it does not lead to harm or undutifulness to parents. But if she knows that this money is from the usury or interest itself, then it is not permissible. Yes.