Who is sinful when the son of the maternal uncle sees Muslim women who are not wearing hijab inside their home due to the door not being closed: is it the Muslim women, or their families, or must they be patient and wear the hijab always?

A woman is not permitted to remove her hijab (definition) in her home unless she is certain that no non-mahram (definition) men can see her, because the evidence for hijab is general, and hardship does not negate an obligation. Furthermore, the harm of uncovering is greater than the benefit of alleviation. A woman should know that her honor lies in her chastity, and her patience in enduring hardship carries a great reward and removes anxieties. The sin of looking falls upon the woman if she neglects her hijab, and upon the beholder. It is obligatory for a wealthy father to provide for his unmarried daughter, including suitable housing that ensures concealment; otherwise, he incurs sin.