Ishaq ibn Am'mar told Imam Sadiq (a.s): “I am a famous man, and our companions come to see me often. Should I prevent them from doing so?” Imam Sadiq (a.s) replied: “No Ishaq. Do not withdraw your friendship, since you cannot do so.” Ishaq said that he tried to persuade the Imam (a.s) to let him not associate with them anymore, but the Imam (a.s) did not grant him the permission to do so.”