《北齐书·列传·卷十八》
又由于与公主关系疏远，公主悄悄地向皇上控诉，消难害怕得罪，便招延邻国之敌，逃亡到关西。
又于公主情好不睦，公主谮诉之，惧罪，遂招延邻敌，走关西。
In addition, his relationship with the princess was distant, and the princess quietly complained to the emperor. Xiaonan was afraid of offending him, so he called on the enemy from the neighboring country to escape to Guanzhong.