ISIS: Rooted Deeply In Islam
New recruits to ISIS required to study Qur’an and Sunnah, and Shari’a, which is codification into law of both. They aren’t told to ignore Islam; they are told to study Islam ever more intensively. That is what the Western world’s leaders do not wish to hear or comprehend, because if that is true, they they have no idea how to handle the millions of Muslims in their midst.
Here.