Al-Kāfi

2. Abu Ali al-Ash‘ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from ibn Faddal from Tha‘labah ibn Maymun from abu Basir who has narrated the following: “Abu Ja‘far (a.s.), has said, ‘Judgments and laws are of two kinds: the judgment of Allah and the judgment of ignorance. Allah, most Majestic, most Glorious, has said, “. . . who is a better judge than Allah for a believing people.” (5:59) You all must bear testimony that Zayd ibn Thabit issued a judgment in matters of obligations according to the judgment of ignorance.’” (In the case of a contracting slave-girl and her fornication Zayd judged opposite to the judgment of Ali (a.s.), in the time of ‘Uthman)