nameless
The Creator
Yes, i know they have different philosophies. However, the point comes down to wether or not they share the same core beliefs, which they do, so they are Muslims. Other sects might disagree with some of their philosophies, but that doesn't make them not Muslims. In other words, any of them who believe in God, and his prophet, and say he/she is a Muslim, is a Muslim.
is it not necessary for a muslim to completely obey quran?