416. Amir al-mu'minin, peace be upon him, said to his son al-Hasan (peace be upon him): O my son, do not leave anything of this world behind you, because you will be leaving it for either of two sorts of persons: Either a person who uses it in obeying Allah, in this case he will acquire virtue through what was evil for you, or it will be a person who uses it in disobeying Allah and in that case he will be earning evil with what you collected for him, and so you will be assisting him in his sinfulness; and neither of these two deserves to be preferred by you over yourself.