《史记·十二本纪·周本纪》
秦召见西周君，西周君不愿去，所以就派人对韩王说： 秦国召见西周君，他是想派他去攻打大王的南阳，大王为什么不出兵驻守南阳呢？
秦召西周君，西周君恶往，故令人谓韩王曰： 秦召西周君，将以使攻王之南阳也，王何不出兵於南阳？
Qin summoned King of West Zhou, but King of West Zhou was reluctant to leave, so he sent someone to tell King Han: Qin State summoned King of West Zhou because Qin State wants to send him to attack your Nanyang, why don't you deploy troops to guard Nanyang?