If you declare with your mouth, "Jesus is Lord," and believe in your heart that God raised him from the dead, you will be saved.
Romans 10:9
It doesnt get anymore clearcut then that now does it?, but its sad to say that Islam isnt a legit branch of the Abrahamic religions.
"Your father Abraham rejoiced as he looked forward to my coming. He saw it and was glad." The Jews replied, You are not yet fifty years old, and have You seen Abraham? Jesus said to them, Truly, truly, I say to you, before Abraham was born, I am.
John 8:52
If you notice, Jesus states himself to be the great "I AM"
That is the same title given to Moses through God from the revelations given via the burning bush back in the Old Testament period.
"Moses said to God, "Suppose I go to the Israelites and say to them, 'The God of your fathers has sent me to you,' and they ask me, 'What is his name?' Then what shall I tell them?" God said to Moses, "I AM WHO I AM. This is what you are to say to the Israelites: 'I AM has sent me to you.'"
Exodus 3:13-14
If anything, if Abraham were to see "Muhammaed aka The greatest false prophet there ever was aka a child molester aka a deranged murder" he would probably ball his fist and spit in his face