《后汉书·列传·桓谭冯衍列传上》
现在故主更始已死，还为谁去尽义呢；老母被拘执，从报恩来讲应当留下。
今故主已亡，义其谁为；老母拘执，恩所当留。
Now that my former master, Gengshi, is dead, who should I serve? My old mother is being held captive, and to repay her kindness, I should stay with her.