Sayyiduna Abdur-Rahman bin Awf (may Allah be pleased with him) narrates: Five or four of the Companions of the Prophet (peace and blessings be upon him) would never leave the Prophet (peace and blessings be upon him) (the narrator is unsure; perhaps the words are:) the door of the Prophet (peace and blessings be upon him).
Al-Bazzar recorded it; its chain contains a narrator, Musa bin Ubaydah al-Rabadhi, and he is da'if (weak).