《资治通鉴·晋纪·晋纪十四》
因为当时战争不息，百姓饥馑难忍，以至挖掘田鼠和藏伏避寒的燕子作为食物，后赵乘机进逼，郗鉴退守合肥，尚书右仆射纪瞻认为郗鉴名望不错，道德高尚，应当在朝中施展才能，于是上疏请求征用他。元帝便征召郗鉴任尚书。
战争不息，百姓饥馑，掘野鼠、蛰燕而食之，为后赵所逼，退屯合肥。尚书右仆射纪瞻，以鉴雅望清德，宜从容台阁，上疏请征之；乃征拜尚书。
Because the war was endless at that time, the people were starving and suffering, so they dug out voles and swallows that were hiding from the cold as food. Later Zhao took the opportunity to approach, Xi Jian retreated to Hefei, and Ji Zhan, the right servant of the book, believed that Xi Jian had a good reputation and high moral character, and should show his talents in the court, so he wrote a letter requesting that he be recruited. Emperor Yuan then summoned Xi Jian as a bookkeeper.