We have been ordered through our religious education as well as the messenger of Allah (peace be upon him and his progeny) has ordered us to respect our guests. If and infidel person or a disbeliever knocked the door of your house and asks if they can have lunch or dinner in your house, do not reject them! «اکرم الضیف ولو کان کافرا»،, respect your guests even if they are infidel
source : erfan.ir
