It is narrated from Sayyiduna ‘Amir bin Rabi‘ah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Beware! No man should ever be alone with a woman who is not lawful for him, because the third one present is the devil, except in the case of a mahram. The devil is with one person and stays away from more than two. And whoever finds evil to be evil and good to be good, then he is a believer.