1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Ali ibn al-Hakam from Ishaq ibn ‘Ammar from abu al-Nu’man who has said the following: “Once abu Ja’far عليه السلام said to me, ‘O abu al-Nu’man, do not forge lies against us; it removes (your) true belief. Do not seek to be the head to become a sin and do not use people as means of your earning through us; it will make you poor. You will be held accountable and will be stopped for interrogations. If you speak the truth we will certify you and, if you lie, we will reject you.’”