《新唐书·本纪·卷二·太宗》
十一月十六日，薛延陀部落侵犯边境，兵部尚书李世责力任朔州道行军总管，右卫大将军李大亮任灵州道行军总管，凉州都督李袭誉任凉州道行军总管，率军讨伐薛延陀。
十一癸酉，薛延陀寇边，兵部尚书李世勣为朔州道行军总管，右卫大将军李大亮为灵州道行军总管，凉州都督李袭誉为凉州道行军总管，以伐之。
On November 16, the Xue Yantuo tribe invaded the border. Li Shizhili, Shangshu of the Ministry of War, was appointed as the commander-in-chief of the Shuozhou Road Army, Li Daling, General of the Right Guard, was appointed as the commander-in-chief of the Lingzhou Road Army, and Li Xiyu, governor of Liangzhou, was appointed as the commander-in-chief of the Liangzhou Road Army to lead the army to attack Xue Yantuo.