《北齐书·列传·卷二十》
刘乌黑聚集残部，再次侵扰，绍宗秘密地收买了他的徒党，几个月后，就抓获了乌黑，并将其处死。
乌黑收其散众，复为侵窃，绍宗密诱其徒党，数月间，遂执乌黑杀之。
Liu Wuyuan gathered his remaining forces and invaded again, but Shaozong secretly bought off his followers and captured and executed him a few months later.