盗出兵符。这(zhè )事果然一试成(chéng )功。侯赢认为晋鄙也不(bú )是等闲(xián )之辈,不可能轻易相信,如果怀疑(yí ),为(wéi )了大事就得杀了(le )他。他便(biàn )让老朋友朱亥跟(gēn )随同去。信陵(líng )君到了邺地,假传魏王的命令代替晋(jìn )鄙。晋鄙合对上(shàng )兵符(fú ),怀疑这(zhè )件(jiàn )事(shì )的真(zhēn )伪(wěi ),不肯(kěn )从(cóng )命,这时(shí ),朱亥登(dēng )场了(le ),用(yòng )四(sì )十斤的锤子把晋鄙给锤死了。信陵君统帅(shuài )了军队,直奔赵国(guó ),击退秦军,