JAFFAR BIN MOHAMMAD AL - SADIQ (ASWS), from his father, from his fathers (ASWS) from the MESSENGER OF ALLAH (SWT), who said:
“Those who love us should thank ALLAH (SWT) for the first blessing.”
People asked, “What is the first blessing?”
The PROPHET (SAWW) replied, “Legitimacy of birth. No one loves us except those who were conceived legitimately.”
(Ref: Amaali of Sadouq 383 Elal Al-Sharae 141 . Amaali of Tousi 2:71)