Then Judas, who betrayed him, responded by saying, "Surely, it is not I, Master?" He said to him, "You have said it.
Other versions
King James Version
Then Judas, which betrayed him, answered and said, Master, is it I? He said unto him, Thou hast said.English Standard Version
Judas, who would betray him, answered, "Is it I, Rabbi?" He said to him, "You have said so."New International Version
Then Judas, the one who would betray him, said, "Surely not I, Rabbi?" Jesus answered, "Yes, it is you."