57. Humayd ibn Ziyad has narrated from ‘Ubayd Allah ibn Ahmad Ibn Abi ‘Umayr from al-Husayn ibn Ahmad al-Minqariy from Zurarah who has said the following: “Abu ‘Abd Allah عليه السلام, has said, ‘Earning certain kinds of sustenance dries up one’s skin on his bones (very hard to earn).”’