It was the servant Malchus, the servant of the high priest, whom Simon peter cut off his ear when he caught Jesus in the garden. Which made Jesus cry out to Peter and put his hand on Malchus' ear, and he was healed.
Evidence for this from the Bible is:
John 18:10 - Then Simon Peter, who had a sword, drew it and struck the high priest’s servant, cutting off his right ear. (The servant’s name was Malchus.)