35. My father said: Ahmad ibn Idris said, on the authority of Muhammad ibn Ahmad, on the authority of `Abd Allah ibn Muhammad, on the authority of Muhammad ibn Isma`il alNaysaburi, on the authority of `Abd al-Rahman ibn Abu Hashim, on the authority of Kulayb ibn Mu`awiyah that Abu `Abd Allah al-Sadiq said: “No one quarrels except for the one whose chest is narrowed.”