《晋书·列传·第四章》
杜预返回任所后，屡次陈述自己的家世官职，说武职不是他的擅长，请求退职。
预既还镇，累陈家世吏职，武非其功，请退。
After Du Yu returned to his post, he repeatedly presented his family background and official positions, saying that military positions were not his strong suit, and requested to retire. 