《周书·列传·卷四十九》
自从置、塞、蛮、凿占据辽左，篷魏占据中原，亘渣都派遣使臣称藩，接受封拜。
自晋、宋、齐、梁据江左，后魏宅中原，并遣使称藩，兼受封拜。
Ever since the state of Zhi, the Sai, the Man, the Zhao and the Ju occupied Liaodong, and the state of Wei occupied the Central Plains. The Wuhuan sent emissaries to pay homage and accept their investiture as vassals.