No follower of Islam is saved. That is sad, but true. Muslims are believers in a false religion; one in which there can be no salvation. Peter said that salvation is only in the name of Jesus. "Be it known unto you all, and to all the people of Israel, that by the name of Jesus Christ of Nazareth, whom ye crucified, whom God raised from the dead, even by him doth this man stand here before you whole. This is the stone which was set at nought of you builders, which is become the head of the corner. Neither is there salvation in any other: for there is no other name under heaven given among men, whereby we must be saved." Acts 4:10-12. Muslims say that they worship the same God. Allah, they claim is their name for the entity we call God, the Father. Yet Jesus said that no one can come to the Father except through Himself. "Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me." John 14:6. Anyone who tries to climb up any other way is a theif and a robber. John 10:1.
Those who follow Islam are not to be hated and despised. They are to be witnessed to and converted. but simply telling a Muslim that he or she needs to believe on Jesus is not enough. They have been taught that Jesus was a great prophet, but is not the divine Son of God. Simply telling them that Jesus is divine is insufficient. "He that winneth souls is wise." Proverbs 11:30. There is a wise way to go about winning a follower of Islam to the Lord. Start from a basic truth that Islam and Christianity share and progress from there. You have to begin where they are before you can cause them to see the need for a Savior. Both Christians and Muslims acknowledge man's sinfulness and God's holiness. Christianity provides a way to be cleansed from sin. That concept is lacking in Islam. Allah is a remote god of judgment. The Father of Jesus loved the world so much that He gave His only begotten Son to die on the cross as a substitute. Muslims believe that they are the descendants of Abraham. They believe that Abraham offered his son as a sacrifice. (They teach that he offered Ishmael instead of Isaac, but that is not the point here.)
They know his son was spared and a ram was offered in sacrifice as a substitute. Muslims, out of respect for Abraham, annually offer a lamb as a sacrifice. Show the Moslems the fulfillment of the type. Just as Abraham's son went free because of a lamb, men and women can be free of sin because of the Lamb of God. It was necessary that the Lamb of God die for the sins of the people. Sins can be forgiven. Islam is a works-based religion. True Christianity is a grace-based religion. The difference is phenomenal. The love of God, manifested in the Son of God, as a substitute for the sins of the people, is a powerful evangelistic tool. Tell them why you believe in Jesus. Tell them what He has done for you. Tell them why you believe in Jesus. Tell them what He has done for you. Tell them of the loving relationship that now exists between you and your Lord. Make them hunger for that kind of feeling and assurance. Muslims need a savior - just as much as any sinner. The concept of a savior is foreign to them, but they can be taught about a loving God. It may be that the Lord has determined to save your Muslim neighbor or co-worker. It may be that you are the appointed means He has determined to use to bring that miracle to pass.