《魏书·列传·卷七十一》
他的叔父乐陵公冯邈因为战争进入蠕蠕境内，魏母也携带冯熙逃避到氐、羌部落中养育他。
以叔父乐陵公邈因战入蠕蠕，魏母携熙逃避至氐羌中抚育。
His uncle, the Duke of Leling, Feng Miao, entered the territory of the Rouran people because of the war. Wei Mu also took Feng Xi to the territory of the Di and Qiang tribes to raise him.