The ruling on a husband stipulating that his wife not contact her family, who are innovators, except in his presence

Question:
Honorable Shaykh, may Allah grant you success. A questioner says: My wife’s family has been afflicted with some desires and religious innovations (bid'ah). So I stipulated that she not contact them by phone unless I am present, fearing that they might speak to her about things that harm her in her religion from those desires. Is this stipulation of mine religiously valid?

Answer:
Yes, this is a way of protecting her and her interests. This is for her benefit before it is for your benefit. It is for her benefit in order to preserve her from what harms her and from being corrupted, both toward you and toward herself. Yes.