The commitment of the grand sins that voids the faith is the...
The commitment of the grand sins that voids the faith is the engagement wholly in committing the grand acts of disobedience without denial, taking as creed, appetite, or lust, but it is only due to fanaticism and rage that makes one accuse, vilify, kill, seize fortunes, hold up rights, and commit the like grand sins that are perpetrated for reasons other than pursuance of appetite.
Perjury, usury, and the like sins that are committed for motives other than pursuing the appetite, such as consuming intoxicants, fornication, and forbidden amusement. The committer of such grand sins violates his faith and swerves from it while he is not polytheist, atheist, or deviant. He deserves the quality of ignorance if the descriptions are applied to him. If he inclines to the qualities of what we have described, the quality will attach him.
Imam As-Sadiq's Answers about the Kinds of People's Livings 'How many kinds of livings that people earn and deal with each other are there? What are the ways of expenses?' a man asked Imam as-Sadiq (peace be upon him), who answered: All the livings that people earn and deal with each other are four. 'Are all these legal? Are they all illegal? Or are some legal and some illegal?' asked the man.
The Imam (peace be upon him) answered: These four kinds may be legal from one side and illegal from another. These kinds are known and familiar. First of all, there is work in governmental offices. The first of this kind is the jobs of the rulers down to the least job of individuals. Then comes the trade including all sorts of deals, such as vending and purchase. Then come the industries along with all of their kinds. Then come the contracts of lease.
All these kinds are legal from one side and illegal from another. God's obligation on servants is to follow and practice the legal forms of these kinds only and avoid the illegal. Explanation of Work in Governmental Offices Work in governmental offices is of two forms. One is the office of the just authorities whom God ordered to assign as rulers and ordered people to follow them. Within them are their officials and administrators down to the least official.
The other form is the office of the unjust people and their officials down to the least unjust official.