《后汉书·列传·桓荣丁鸿列传》
恰逢老师朱普去世，桓荣到九江奔丧，自己负土替老师筑坟，于是留下来教学，徒众达几百人。
会朱普卒，荣奔丧九江，负土成坟，因留教授，徒众数百人。
As a coincidence, his teacher Zhu Pu died, and Huan Rong went to Jiujiang for the funeral. He built the tomb for his teacher by himself, then he stayed to teach there, and the number of his disciples reached hundreds.