《三国志·魏书·二公孙陶四张传》
公孙渊又担心距离孙权太远无法倚仗，但又贪图那些财宝，就将孙权的使者张弥、许晏等人引诱来，将他们全都杀了并将他们的首级献给明帝，明帝因此任命公孙渊为大司马，封为乐浪公，还允准他想之前一样持符节，继续担任辽东太守。
渊亦恐权远不可恃，且贪货物，诱致其使，悉斩送弥、晏等首，明帝於是拜渊大司马，封乐浪公，持节、领郡如故。
Gongsun Yuan was worried that he was too far from Sun Quan to depend on, but was tempted by the treasures, so he lured the envoys Zhang Mi, Xu Yan and others sent by Sun Quan, and killed them all. He presented their heads to the Ming Emperor, who thus appointed Gongsun Yuan as Grand Marshal and gave him the title of Duke of Lelang, also allowing him to continue holding the tally as before, and to continue serving as governor of Liaodong.