In Islam should you be obedient to your husband or side with your mother and siblings

Recently my father passed away and my mother needs a place to reside. I am married and i am the eldest daughter of three siblings. I have a sister and a brother that are both married. My siblings believe that my mother should stay with me as that is her wish. They are also both living with their mother in-law. My husband does not want my mother to stay with us and has threatened to divorce me should i accept this request. In his opinion it is not his responsibility to take this on as it is my brother's responsibility being her Waqueel. Should i remain obedient to my husband or am I obligated by Islamic law to take in my mother?