Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
Furthermore the Quadi, who had often been their inseparable companions in raids, came at once to share the perils of the Sarmatians; but their ready boldness did not help them either, rushing as they were upon evident hazards.