《资治通鉴·汉纪·汉纪四十八》
当时，中常侍管霸，很有才能和谋略，在禁宫独断专行。窦武请准窦太后，先行逮捕管霸，以及中常侍苏康等，都坐罪处死。
时中常侍管霸，颇有才略，专制省内，武先白收霸及中常侍苏康等，皆坐死。
At that time, Supervisor Guan Ba had great talent and strategy, and acted arbitrarily in the Forbidden City. Dou Wu asked Empress Dowager Dou to arrest Guan Ba and other eunuchs Su Kang first, and they were all executed for their crimes.