Appian of Alexandria Civil Wars 5.12.115

[115] While they were in this state Laronius, who had been sent by Agrippa with three legions, made his appearance a long way off. Although it was not yet plain that he was a friend, still, as they had been all the time hoping for something of this kind, they once more recovered their spirits. When they saw the enemy abandon the water in order not to be exposed to attack on both sides, they shouted for joy with all their strength. When the troops of Laronius shouted in return, they ran and seized the fountain. The leaders forbade the men to drink to excess. Some who neglected this advice died while drinking. In this unexpected manner did Cornificius, and what was left of his army, escape to Agrippa at Mylae. ¹