Neilson Carel Debevoise, A Political History of Parthia (1938)
“ Cassius, the quaestor, suggested a halt to rest the men in one of the garrisoned villages and the dispatch of scouts to gather information on the enemy forces. He argued that, if the advance had to be made at once, the best route lay along the Euphrates to Seleucia, which was the objective. But when Abgarus of Osroene rode into camp with news that the Parthians were retreating and taking their goods with them, and that they had left only two subordinates to cover their flight, Crassus permitted his enthusiasm to win the upper hand, and immediate advance across Mesopotamia was decided upon. ”
