《资治通鉴·汉纪·汉纪三十六》
谒者、南阳人宗均任马援大军的监军。马援去世后，官兵因瘟疫而死的已超过半数，蛮军也饥困交迫。
谒者南阳宗均监援军，援既卒，军士疫死者太半，蛮亦饥困。
Zong Jun, an usher and native of Nanyang, had taken up the position of military overseer for Ma Yuan’s army. After Ma Yuan passed away, more than half of the Imperial force and soldiers had died of plague, and the barbarian army was also both hungry and beleaguered.