《资治通鉴·汉纪·汉纪五十》
如今部下兵少，无法坚守。应该听从羌、胡人的请求，回归故乡，将来等到有圣明的天子出来，再去辅佐。 
今后不足以自守，宜听羌、胡之请，还乡里，徐俟有道而辅之。 
Now there are few subordinates, and it is impossible to stick to it. You should listen to the requests of the Qiang and Hu people and return to your hometown. In the future, when a wise man comes out, you will go to assist him.