Silsilah as-Sahihah 2108 — Traveling alone is discouraged

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that a man left from Khaybar, two men started following him, and another man followed those two. The last man kept telling the two: "Turn back," until he caught up with them and made them return. Then he caught up with the first man and said to him: "Those two were devils; I kept distracting them until I made them return." When you reach the Messenger of Allah (peace and blessings be upon him), convey my greetings to him and inform him that I am collecting zakat here; if it is suitable for you, we will send it. When that man reached the Prophet (peace and blessings be upon him), he narrated the whole incident. At that time, the Prophet (peace and blessings be upon him) forbade seclusion (with non-mahram women).