《晋书·列传·第十章》
等到氐、羌反叛，当时皇帝为此十分忧虑，继于是进言，请求派买充镇守关中。
及氐羌反叛，时帝深以为虑，恺因进说，请充镇关中。
When the Di and Qiang rebelled, the emperor was very worried about it, and then he spoke, asking to send Mai Chong to guard Guanzhong.