Muslims fail to honor Jesus Christ by not believing in His divinity, death or resurrection. Thus
1 John 2:21-23 RSV
I write to you,
not because you do not know the truth,
but because you know it,
and know that no lie is of the truth.
Who is the liar but he who denies that Jesus is the Christ?
This is the antichrist,
he who denies the Father and the Son.
No one who denies the Son has the Father.
He who confesses the Son has the Father also.
It is only by the blood of Jesus Christ that anyone can be saved! Including the Jews and the Muslims alike. The sin offering was not done by a man but the sin offering was done by God himself for us. You can pray or follow a religious custom till your hair falls out and it will not save you.
You can have the faith of Abraham in a god but it will not save you from the Lake of Fire. Only the name of Jesus Christ the ONLY BEGOTTEN SON OF GOD ALMIGHTY, which is the name above all other names, that can save you!