There are degrees of submission (Islam) to God. They very least is to accept the truth of his guidance when it comes to you. The highest is utmost submission to him to the extent that God becomes the eyes which you see and the hearing by which you hear and the tongue by which you speak. And that has various levels in itself.
However there is also the sense that one is a "Muslim" when he accepts God is One and Mohammad as a Messenger. That it is all that is required.
However in the more comprehensive definition, a believer in guidance of God that has come to the person or a submitter to the guidance of God that has come to the person doesn't necessarily have to be a believer in Mohammad.
And a believer in Mohammad may or may not really true believe in the path of Mohammad [s] or his guidance or his proofs.
The Quran after all says those who follow Mohammad [s] are upon insight from their Lord. I highly doubt ISIS have any insight to the path and light of God's guidance or that of the Quran. They are zealous morons, nothing more.
The Quran says it's revealed for a people who use reasoning and reflect. Had they an iota of that trait, they would not be the fanatical morons they are.
However there is also the sense that one is a "Muslim" when he accepts God is One and Mohammad as a Messenger. That it is all that is required.
However in the more comprehensive definition, a believer in guidance of God that has come to the person or a submitter to the guidance of God that has come to the person doesn't necessarily have to be a believer in Mohammad.
And a believer in Mohammad may or may not really true believe in the path of Mohammad [s] or his guidance or his proofs.
The Quran after all says those who follow Mohammad [s] are upon insight from their Lord. I highly doubt ISIS have any insight to the path and light of God's guidance or that of the Quran. They are zealous morons, nothing more.
The Quran says it's revealed for a people who use reasoning and reflect. Had they an iota of that trait, they would not be the fanatical morons they are.