if you find no one at home do not go in until permission has been granted you. if you are told to go away then go away. that is more proper for you. god knows well what you do.
فإن لم تجدوا فيها أحدا فلا تدخلوها حتى يؤذن لكم وإن قيل لكم ارجعوا فارجعوا هو أزكى لكم والله بما تعملون عليم