Imam al-Sadiq (a.s) reported: There was a clown in Medina who would make people laugh. One day he said to himself, “This man (Imam Zayn al-`Abidin) has made me helpless to make him laugh!” So, when the Imam was followed by two of his servants, he passed by the clown. Seeing the Imam, the clown walked behind him, drew his cloak and ran away. The Imam did not pay any attention to the clown but people went after him and took back the cloak. Addressing people, the Imam said, “Who is this man?” They said, “He is a making people of Medina laugh.” The Imam said, “Tell him there is a day for Allah in which idle people will suffer losses.” ( Al-Amali by Shaykh al-Saduq: 220, H 6.)