《资治通鉴·梁纪·梁纪九》
北魏尔朱荣派大都督、尖山县人侯渊到蓟州讨伐韩楼。尔朱荣给他的兵力很少，骑兵只有七百，有人为侯渊说话请求多派兵，尔朱荣却说道： 侯渊善于临机应变，这是他的长处；如果让他统帅很多军队，反而未必能指挥调度。
魏尔硃荣使大都督尖山侯渊讨韩楼于蓟，配卒甚少，骑止七百。或以为言，荣曰： 侯渊临机设变，是其所长；若总大众，未必能用。
Erzhu Rong of the Northern Wei sent Grand Governor Hou Yuan from Jianshan County to Jizhou to attack Han Lou. Erzhu Rong offered him only a small force of seven hundred cavalry, and some spoke on Hou Yuan’s behalf to request more soldiers, but Erzhu Rong said: “Hou Yuan is adept at adapting to changes in circumstances, and this is his strength; if he is to lead a large army, he may not be able to command and control it effectively.”