1-91 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Ahmad ibn Idris quoted on the authority of Sahl ibn Zyad, on the authority of Al-Nawfaly, on the authority of Isma’il ibn Abi Zyad that Aba Abdullah as-Sadiq (MGB) said, “I despise whoever whose health overcomes his illness, but he treats himself with something and dies.”