《周书·列传·卷十四》
尔朱天光赴洛阳时，侯莫陈悦与贺拔岳都下陇山而赴雍州，活捉尔朱天光之弟尔朱显寿。
及天光赴洛，悦与岳俱下陇趣雍州，擒天光弟显寿。
When Er Zhutianguang went to Luoyang, Hou Mouchangyue and He Bayue went down Longshan and went to Yongzhou, capturing Er Zhutian's younger brother, Er Zhuxianshou.