Matthew 26:71-72 - And when he was gone out into the porch, another maid saw him, and said unto them that were there, This fellow was also with Jesus of Nazareth.And again he denied with an oath, I do not know the man. (Verses like Matthew 26:71)
Mark 14:69-70 - And a maid saw him again, and began to say to them that stood by, This is one of them.And he denied it again. And a little after, they that stood by said again to Peter, Surely thou art one of them: for thou art a Galilaean, and thy speech agreeth thereto. (Verses like Mark 14:69)
John 18:25 - And Simon Peter stood and warmed himself. They said therefore unto him, Art not thou also one of his disciples? He denied it, and said, I am not. (Verses like John 18:25)