then if you do not find anyone therein do not enter until you have been given permission and if you are told to go back you should go back. this is a purer way for you and allah has full knowledge of 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