Who said government is a contract between rulers and the people?

The idea that government is a contract between rulers and the people is most famously associated with the philosopher Thomas Hobbes. In his work "Leviathan," published in 1651, Hobbes describes the social contract as an agreement in which individuals consent to surrender some of their freedoms in exchange for protection and order provided by a sovereign authority. This concept was later expanded upon by other philosophers, such as john Locke and Jean-Jacques Rousseau, who also emphasized the importance of the social contract in political theory.