Praise be to Allaah.
It is known that employment and work is not called ‘ibaadah (worship), and it is not one of the kinds of worship that should be done only for Allaah. People work at their jobs in order to make their salaries halaal, and so that they will be deserving of what they are given, and so on. The intention cannot be described in terms of worship. But if he knows that it is a trust between him and Allaah, and that Allaah is always watching him, so he pays attention to the fact that his Lord is watching him in this work, so that what he takes as wages will be halaal beyond a doubt, then he will have the reward for this sincerity, even if his intention is that nothing should be docked from his pay and so on. Given that this employee undertakes his religious duties and keeps away from haraam things, he is to be commended for that. And Allaah multiplies the reward for whomsoever He wills. And Allaah is the Generous Bestower and All-Knowing.