Who was the first Muslim?
The same did Abraham enjoin upon his sons, and also Jacob, (saying): O my sons! Lo! Allah hath chosen for you the (true) religion; therefore die not save as men who have surrendered (unto Him). 2:132
And Moses fell down senseless. And when he woke he said: Glory unto Thee! I turn unto Thee repentant, and I am the first of (true) believers. 7:143
And I [Muhammad] am commanded to be the first of those who are muslims (surrender unto Him). 39:12