بسم الله الرحمن الرحيم
(Fatwa: 10/B/25/Tatimmah/=2/1439)
After marriage, you came under the authority of your husband; it is mandatory for you to abide by him in all the lawful affairs and you shall become sinful in case you violate him. It is not good for you to stay at your sister’s home. The bahnoi is non-mahram and it is mandatory to observe purdah with him. You should stay at your husband’s home and sometimes may go and stay at your parents house.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
