3-7 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Ahmad ibn Idris quoted Muhammad ibn Ahmad , on the authority of Sahl ibn Zyad, on the authority of Al-Harith ibn al-Dalhath - a servant of Al-Ridha (MGB), “I heard Abal-Hassan (MGB)say ‘One cannot be a true believer unless he possesses the following three characteristics: one from his Lord, one from his Prophet and one from his Imam. The one from his Lord is guarding secrets as the Honorable the Exalted God said, ‘He (alone) knows the Unseen, nor does He make anyone acquainted with his Mysteries, except an Apostle whom He has chosen.’ However, the one from the Prophet is kind treatment with the people, as the Honorable the Exalted God has ordered His Prophet (MGB) to treat the people with kindness and patience and said, ‘Hold to forgiveness; command what is right; but turn away from the ignorant.’ And the one from the Imams (MGB) is patience and perseverance during times of hardship and calamities. The Honorable the Exalted God says, ‘…and to be firm and patient, in pain (or suffering) and adversity…’ ”