《北史·列传·卷四十二》
段韶说 ：突厥人侵犯北部边境，事情就像身上长了癣疥，北周人的进攻，才是深入膏肓的大病。 
韶曰： 北虏侵边，事等疥癣；西羌窥逼，是膏肓之病。 
Duan Shao said: "The Tujue's invasion of the northern borders is like having ringworm or scabies on our bodies, while the Western Zhou's attack is a serious illness that has penetrated to our marrow."