2-65 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Muhammad ibn Yahya al-Attar quoted Ahmad ibn Muhammad Isa and Abdullah ibn Muhammad ibn Isa, on the authority of Ali ibn al-Hikam, on the authority of Sayf ibn Umayrih, on the authority of Mufaz’zal ibn Mazid that Abu Abdullah as-Sadiq (MGB) said, “
I admonish you against two characteristics which can ruin men: to worship God with a wrong religion, and to advise people on issues you are uninformed about.”