《资治通鉴·晋纪·晋纪六》
长史蜀郡人杜淑、张粲劝说赵道： 将军刚刚起兵、就仓促派李庠在外掌握重兵。他不是我们的族类，一定不会和我们一条心，这是倒转长矛交给别人让他向我们攻击，应当尽快设法对付他。 
长史蜀郡杜淑、张粲说廞曰： 将军起兵始尔，而遽遣李庠握强兵于外，非我族类，其心必异。此倒戈授人也，宜早图之。 
Shu Commandery's Secretary General Du Shu and Zhang Can advised Zhao Dao, "General, you just raised an army and yet you hurriedly sent Li Xiang outside to take command of a large army. He is not from our clan and thus will not be of a single mind with us. This is like turning around a spear and handing it to someone to have him strike us with it. We must find a way to deal with him as soon as possible."