Sahih Al Bukhari (461)

حدثنا أنس: أن رجلين من أصحاب النبي صلى الله عليه وسلم، خرجا من عند النبي صلى الله عليه وسلم في ليلة مظلمة، ومعهما مثل المصباحين، يضيئان بين أيديهما، فلما افترقا، صار مع كل واحد منهما واحد، حتى أتى أهله.

Anas ibn Malik (may Allah be pleased with him) narrated: Two of the companions of the Prophet (peace be upon him) departed from him on a dark night and were led by two lights like lamps (going in front of them from Allah as a miracle) lighting the way in front of them, and when they parted, each of them was accompanied by one of these lights till he reached their (respective) houses.