《资治通鉴·汉纪·汉纪四十二》
冬季，十月，鲜卑军入侵上谷，攻打居庸关。朝廷再次增调沿边各郡郡兵和黎阳营兵、弓弩手等，步、骑兵共二万人，分驻要塞。
冬，十月，鲜卑寇上谷，攻居庸关，复发缘边诸郡黎阳营兵、积射士步骑二万人屯列冲要。
In the winter, in the tenth month, the Xianbei army invaded Shanggu and attacked the Juyong Pass. The imperial court once again dispatched additional troops from border commanderies, Liyang Camp, archers, etc., totaling 20,000 infantry and cavalry, and stationed them at important fortresses.