It seems probable that having driven Narses from Armenia, and left Tiridates there to administer the government, he hastened to rejoin Diocletian before attempting any further conquests.
The Persian monarch, on his side, having recovered from his wound, which could have been but slight, set himself to collect another army, but at the same time sent an ambassador to to the camp of Galerius, requesting to know the terms on which Rome would consent to make peace.

A writer of good authority has left us an account of the interview which followed between the envoy of the Persian monarch and the victorious Roman.
Apharban (so was the envoy named) opened the negotiations with the following speech: "The whole human race knows," he said, "that the Roman and Persian kingdoms resemble two great luminaries, and that, like a man's two eyes, they ought mutually to adorn and illustrate each other, and not in the extremity of their wrath to seek rather each other's destruction.

So to act is not to act manfully, but is indicative rather of levity and weakness; for it is to suppose that our inferiors can never be of any service to us, and that therefore we had bettor get rid of them.

Narses, moreover, ought not to be accounted a weaker prince than other Persian kings; thou hast indeed conquered him, but then thou surpassest all other monarchs; and thus Narses has of course been worsted by thee, though he is no whit inferior in merit to the best of his ancestors.
The orders which my master has given me are to entrust all the rights of Persia to the clemency of Rome; and I therefore do not even bring with me any conditions of peace, since it is for the emperor to determine everything.

I have only to pray, on my master's behalf, for the restoration of his wives and male children; if he receives them at your hands, he will be forever beholden to you, and will be better pleased than if he recovered them by force of arms.