Is it obligatory to obey the husband's father, and does a woman sin if he prevents her from visiting her father?

Question : Please, peace be upon you. Yes. This questioner mentions, Honorable Shaykh, that her father passed away, and since she had requested to visit her father before his death but was prevented by her husband's father, does she sin by not seeing her father?

Answer : She does not sin by not seeing her father, because she was prevented from doing so, and this was not by her own choice. However, I tell her that she is not required to obey her husband's father. If her husband permits her to visit her father and her father prevents her, her father's prevention is of no account. Rather, she disobeys her father and goes out to her father. Because the only one who has authority over her is the husband.
As for the husband's father, he has no right to prevent his son's wife from visiting her father. By preventing her, he has sinned and transgressed against her. So he must repent to Allah and not return to it.
This happens often with some fathers of husbands; you find him controlling his son's wife, harming her, and troubling her, and he has no right to do so. Rather, the one who has the power to prevent her and to permit her is the husband. May Allah reward you, and thank you to the sister questioner.