A wife covering up in the presence of her brother-in-law who should lower his gaze
I live with my elder brothers who are married, (Part No. 17; Page No. 410) but their wives do not wear Hijab (veil) in front of me.
I asked them to wear Hijab in my presence, but they did not obey me. Sometimes they might reveal their hair or their legs, and I am a young man. What should I do? What should they do?
you should lower your gaze and not look at what is unlawful for you to look at.
a Muslim woman should wear Hijab in front of Ajanib (men other than a husband or permanently unmarriageable male relatives), such as her brother-in-law.
you should tell their guardians and their husbands the Shar`y (Islamically lawful) ruling on Hijab, and argue with them in a good way, so that Allah (Exalted be He) may guide them all to that which pleases Him. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.