Like the Samaritans, the Muslims today worshiped the God of Abraham; like the Samaritans, the Muslims "worship what they do not know." And many Muslims often turn down salvation in Jesus because they could not imagine joining the Christian religion. But the question is that does salvation really come from joining a religion identity namely Christianity or instead salvation come from having faith in Jesus Christ as Lord and Savior of the World?
When all the Jewish put judgment on Samaritans, Jesus came into their community and proclaim the good news. Further more, He removed that barrier of worshiping in the "mountain", but instead He introduce the seed of the Kingdom of God and saying that "true worshipers will worship the Father in the Spirit and in truth".
The question here is that can Muslim remain to their socio-religious identity as a Muslim but still receive salvation by accepting Jesus (lsa) as Lord and worship God in spirit and in truth? I believe so!
Further more, claiming yourselves a christian without accepting Jesus Christ as Lord and Savior of the World, and if your action does not reflect what you claim, you may not necessarily have truly received salvation yet. (Matthew 7:21)