H 267 - Abu Abdullah Ibn Babawayh [Shaykh Saduq] said: I started teaching when I was less than twenty years of age. Many a time, Abu Ja’far Muhammad Ibn Ali Aswad would attend my sessions and when he observed my promptness in answering questions regarding codes of practice (Fiqh), he would be much astonished by my young age and would say, “No wonder you were born through the Dua of the Imam .”