Is it permissible for parents to ask their married son to leave the house due to their difficult financial situation, and is it permissible for the son to refuse?

The father is not obligated to financially support his adult son who is capable of earning a living. Parents have the right to ask their son to leave the home once he reaches adulthood, except according to the Hanbalis, who believe that it is obligatory to provide financial support and housing for an impoverished son. Therefore, we advise the questioner to strive to secure private housing for himself and his wife.