“A man complained before Abu ‘Abdillah (a.s.) that he works and earns but is not content and his soul’s desires compel him to find more. The man asked the Imam to teach him something to benefit him. Abu ‘Abd Allah (a.s.) said, ‘If it (earnings) is enough for your necessities then it should make you rich. Thus, the minimum should suffice you. If this does not suffice then all things that are there will not suffice you.’”