That everything which exists belongs to Allah, is the essence of the Islamic economic system. As the Qur'an states, "To Allah belongs whatever is in the heavens and whatever is in the earth." (2:284) Nevertheless, Allah has allowed us to own the wealth of this world and be a private owner. The Qur'an states, "He has created for you whatever that is in the earth." (2:29) Islam recognizes the rights of the private owner but it has also limited the ways of acquiring and collecting excessive wealth, thereby regulating finance in the society and constituting a variety of forms of ownership. Allah says, "And the man shall gain nothing but what he strives for" (53:39), indicating that man should only seek what he deserves from his hard work.