The idea that Muslims are obligated to live in a genuine caliphate is why 30,000 Muslims from 100 different countries joined the Islamic State. But the Qur’an also promises a reward from Allah to those who emigrate to a new land in order to Islamize it: “And whoever emigrates for the cause of Allah will find on the earth many locations and abundance. And whoever leaves his home as an emigrant to Allah and His Messenger and then death overtakes him – his reward has already become incumbent upon Allah. And Allah is ever Forgiving and Merciful.” (Qur’an 4:100)
“Senior Canadian Imam says Muslims will be obligated to move to the Islamic State,” by Rachel Ehrenfeld, American Center for Democracy, July 22, 2019:
Imam Dr. Abdullah Hakim Quick is a Director at the Canadian Council of Imams….
“If Allah Willing there is a Caliph [Leader of the Caliphate or the Islamic State] who arises then we would be obligated to go to that area. May Allah raise this Caliph up.”