sentences:  He then rose in revolt and proclaimed himself imam and caliph with the title of "al-Mustafa li-Din Allah" ("the Chosen One for God's Religion").A gold dinar of Nizar, bearing this title, was discovered in 1994, attesting to his assumption of the caliphal title and the minting of coinage with it.According to the historian Paul E. Walker, the speed with which Nizar gained support, and some other stories narrated in al-Maqrizi, suggest the existence of a relatively large faction that expected or wanted him to succeed al-Mustansir.