Maududi on Shariah Law's precedence over any other legal system (Islamic Law and Its Introduction, p. 13): That if an Islamic society consciously resolves not to accept the Sharia, and decides to enact its own constitution and laws or borrow them from any other source in disregard of the Sharia, such a society breaks its contract with God and forfeits its right to be called 'Islamic.
CENTERFORSECURITYPOLICY: ISNA's Ingrid Mattson in her own words