《资治通鉴·晋纪·晋纪二十二》
二月，代王拓跋什翼犍率兵西巡到达黄河岸边，刘阏头害怕，便请求投降。
二月，代王什翼犍引兵西巡，临河，阏头惧，请降。
In February, Dai King Tuoba Shiyijian led troops on a westward tour and reached the banks of the Yellow River. Liu Atou was afraid, so he asked to surrender.