The Book of Characteristics · Hadith 179 (#Ḥadīth #1)

2-65 حدثنا أبي رضي الله عنه قال: حدثنا محمد بن يحيى العطار، عن أحمد وعبد الله ابني محمد بن عيسى، عن علي بن الحكم، عن سيف بن عميرة، عن مفضل بن مزيد قال: قال أبوعبد الله عليه السلام: أنهاك عن خصلتين فيهما هلك الرجال: أن تدين الله بالباطل وتفتي الناس بما لا تعلم

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.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).