28. My father said: Muhammad ibn Yahya al-`Attar said, on the authority of Muhammad ibn al-Husayn ibn Abu al-Khattab, on the authority of Ibn Fuddal, on the authority of `Ali ibn Shajarah, on the authority of Ibrahim ibn Abu Raja’, on the authority of Tirbal’s brother that Abu `Abd Allah al-Sadiq said: “Abstaining from annoying (others with arguments) and desisting from shouting increase one’s sustenance.”