《北史·列传·卷四十一》
他酒醉后深入敌人阵地，被刺得肠子都流出来了，往肚子里装也装不完，用刀截去再战。身上多处受创伤，军队的威势遭到挫折，失败回营，高欢常常说起这件事，并因此反复告诫他。
乐因醉入深，被刺肠出，内之不尽，截去复战，身被数创，军势遂挫，不利而还。
After getting drunk, he went deep into the enemy's position, and his intestines were stabbed out. He couldn't fit it back into his stomach. He cut it off with a knife and fought again. He was seriously injured in many places. The army's power was frustrated. He failed and returned to the camp. Gao Huan often talked about this and repeatedly warned him because of this.