《宋书·列传·卷九十五》
拓跋嗣又在邺城派一万多人从白沙口渡过黄河，在濮阳城南修筑堡垒。
嗣又于鄴遣万余人从白沙口过河，于濮阳城南寒泉筑垒。
Tuoba Si dispatched 10,000 troops to cross the Yellow River from Baisha crossing at Yecheng and construct a fortification to the south of Puyang.