Prayer and work complement each other on the road to wealth and financial success. We live in religious societies where people are won't to believe that prayer is the master key to unlock wealth and riches. It's very common to find people spending a lot of their time praying and praying for money to come.
Unfortunately praying for money alone won't cause money to come. You've got to pray and get involved with some profitable activities that God can bless in order to become wealthy and financially successful. So complement your work with prayer.