de bello gallico, 5.36

Having been disturbed by these things, QuintusTiturius, when he had seen from a distance Ambiorix encouraging his own men, sent his interpreter Gnaeius Pompeius to him to ask that he spare him and his soldiers. That man having been called upon responded: if he should wish to speak with him, it would be permitted; he can hope to be granted by the multitude that which pertains to the safety of his soldiers; indeed nothing would be harmful for himself, and upon this matter Ambiorix pledges (lit. alleges) his faith. That man communicates with the wounded Cotta, if it should seem, that they should leave the fight and speak together with Ambiorix: he can hope to granted by him concerning his safety and that of his soldiers. Cotta said that he would not go to an armed enemy and in this he persevered.