The Gospel of Judas 58

1Immediately there was a disturbance among [the] Jews, more than […] Their high priests grumbled because he'd gone into the guest room to pray. But some scribes were there watching closely so they could arrest him during his prayer, because they were afraid of the people, since they all regarded him as a prophet.
2And they approached Judas and said to him, "What are you doing here? Aren't you Jesus' disciple?"
3Then he answered them as they wished. Then Judas received some money and handed him over to them.
See also: Matthew 26:15