It's a strict Islamic movement originated from the previously known Kingdom of Najd, the currently Central Area of the country. It got adopted by the govt. and used all over the country when the rest of it was unified. It typically takes the strict choices of the four schools of the the currently know Sunnah sect, and from Islamic teachings in general. I can't talk much about it to not attract attention to myself.
Yeah, I know! Sorry man, I was just responding to Crypto's post on 'the ideology behind IS' - sorry to be unclear.
I am sure you are a very strict orthodox Wahhabi.