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 (a.s.). He called his son who was a small (boy). The Imams (a.s.) placed him in my lap and said to me. “ Move his shirt aside.” When I did so. The Imams (a.s.) 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 (a.s.) then asked, “Do you see this.? Similar to this there was one in the shoulder of my father.”