《新唐书·列传·卷一百四十一》
薛仁贵等前往抚定慕容氏，你们又发兵伏击，且侵扰我凉州，这是为什么？ 
薛仁贵等往定慕容氏，又伏击之，而寇我凉州，何邪？ 
Xue Rengui and others went to comfort and stabilize the Murong clan, but you sent troops to ambush and harassed my Liangzhou. Why is that? 