His brothers smoke in his house; is he allowed to expel them?

Question : He says: They come to me, these people, in my house, and they smoke every two or three days. They do not smoke in front of me; they go out and smoke in the bathroom on the upper floor. I told them, “I do not want smoking in my house at all, and I have no intention of smoking at all. If anyone wants to come to my house, let them come without smoking; otherwise, they are welcome. But when I go up to harvest up there, it is as Allah wills. Do I have the right to expel them and cut off ties with them, or should I just put up with this?”

Answer : In the name of Allah, the Most Gracious, the Most Merciful. Praise be to Allah, Lord of the worlds. May Allah send prayers and blessings upon our Prophet Muhammad, and upon his family and his Companions, and upon those who follow them with excellence until the Day of Judgment. It is not permissible for them to smoke in your house when you do not approve of it, whether in front of you, in the bathroom, or anywhere in the house. The house is your house, and you are the one concerned with it. If you prohibit smoking in it, then it is not permissible for them to smoke in it. Rather, they must sit with you until they get up and go smoke in their own houses.