《北史·列传·卷八十七》
俟斤依旧请求起倾国之兵向东讨伐齐国，于是周武帝令隋公杨忠率领一万人马，和突厥兵一起讨伐齐国。
仍请举国东伐，于是诏随公杨忠率众一万与突厥伐齐。
Qi Jin still begged to raise the army of the whole country to attack Qi in the east, so Emperor Wu of the Zhou Dynasty ordered Sui Gong Yang Zhong to lead 10,000 troops and horses to attack Qi together with the Turkish army.