《资治通鉴·晋纪·晋纪二十二》
春季，正月，前燕太原王慕容恪率兵渡过了黄河，离广固只有一百多里，段龛率领兵众三万人迎战。
春，正月，燕太原王恪引兵济河，未至广固百馀里，段龛帅众三万逆战。
Spring, January, Murong Ke, the King of Taiyuan of Former Yan, led his troops across the Yellow River, which was only over a hundred miles from Guanggu. Duan Kan led thirty thousand troops to fight against them.