Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) says: A man set out from Khaybar, two men followed behind him, and another man followed behind those two. He was telling them: "Turn back, turn back." (Until) he made them turn back, then he caught up with the first man and informed him that those two were devils. I kept following them until I made them turn back. When you reach the Messenger of Allah (peace and blessings be upon him), convey my greetings to him and inform him that we are collecting charity here; if you are worthy in the sight of the Messenger of Allah (peace and blessings be upon him), we will send it. That man reached Madinah and informed the Noble Prophet (peace and blessings be upon him) of the whole matter. So the Prophet (peace and blessings be upon him) forbade seclusion (privacy).

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "If people knew (the harms) of solitude, then no traveler would set out alone at night."

It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "A single traveler is a devil, two travelers are also devils, but if there are three travelers, then they form a caravan."

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) forbade solitude, that is, for a man to spend the night alone and to travel alone.