8. Ahmad has narrated from Muhammad ibn Ali From al-Hassan ibn al-Jahm who has said the following. “Once I was in the presence of abu al-Hassan . He called his son who was a small (boy). The Imams placed him in my lap and said to me. “ Move his shirt aside.” When I did so. The Imams said, “Look in between his shoulders.” I look and I found in the skin of one shoulder something like an imprint of a seal.” The Imams then asked, “Do you see this.? Similar to this there was one in the shoulder of my father.”