"Abul-Hassan-ir-Rida (as.), the eighth Imam, said: "May the Mercy of Allah be upon the servant who keeps alive our commandment." Then the person attending the Imam asked him [a] how their commandment could be kept alive and he [a] replied: "He (can) l" Ma'ani-ul-Akhbar, p.180 & 'Uyun-il-Akhbar-ir-Rida, vol.1, p. 207
