This question may cause a person to apostatize from Islam , but it certainly does not cause a person to be apostatized from Judaism. As according to the law , we find the fact that , belief in Muhammad pbuh is not equatable to Idolatry and hence wont demand sacrifice of life as is the case of the law for Idolatry, thus making Islam simply as a sect within Judaism:
Rabbi M. Friedländer in ("Guide of the Perplexed," i., xvii., xxxiii., et seq.), in which Islam is declared to be simply a belief in Mohammed, and that Islam is not idolatry, to avoid which only the Law demands the sacrifice of l…