Work - Not Just Pray

An extremely anxious and perplexed man visited Hazrat Imam Jafar al-Sadiq (‘a), and begged him to pray that Allah would increase his sustenance and relieve him of all financial stress.
The Imam (‘a) answered, ‘I shall certainly not pray for you.’
The poor man sighed and asked, ‘But why not? What have I done?’
The Imam (‘a) replied, ‘You know perfectly well that Allah has devised means and ways of attaining prosperity. He has ordered you to leave your house and earn a living through hard work. You refuse to obey the law and foolishly hope praying for you will bring you prosperity.’