The Hamas Covenant which is basically the muslim constitution says that treaties made with none muslims aren’t really valid but they are still used as a means of getting their way.
http://avalon.law.yale.edu/20th_century/hamas.asp
Two-language article, with Tariq Ramadan’s words interspersed, on Islamic Socialism:
“Ramadan prefers to see the family legacy in terms of “Islamic socialism, which is neither socialist, nor capitalist, but a third way.” In this reading, his father’s friendship with Malcolm X is much more significant than any Saudi Arabian connection. This is why Ramadan was a popular speaker with African-American Muslims before his visa was revoked.
“Western Muslims and the Future of Islam” throws some light on Ramadan’s idea of “Islamic socialism,” an ideology, combining religious principles with anticapitalist, anti-imperialist politics, that goes back to the time of the Russian Revolution...”
http://www.document.no/2007/02/tariq_ramadan_sosialistisk_isl/