1-48 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted on the authority of Ahmad ibn Muhammad, on the authority of Abi Umayr, on the authority of Hamzih ibn Himran that Aba Abdullah as-Sadiq (MGB) said, “God the Exalted the Sublime has not created any certitude in which there is no doubt similar to the doubt about death in which there is no certitude.”