《资治通鉴·汉纪·汉纪十三》
又将平时自己对杨仆的怀疑一一告诉公孙遂，说道： 现在这样还不先发制人，恐怕会成大祸。 
具以素所意告，曰： 今如此不取，恐为大害。 
Then he told Gongsun Sui about his suspicions about Yang Pu, saying: "If we don't strike first now, I fear it will be a great disaster."