《宋史·列传·卷一百一十》
居中要求得到厚报，蔡京对他说枢密是执掌兵权的重要机关，与三省机关不同，不妨用人唯亲。
居中厚责报，京为言枢密本兵之地，与三省殊，无嫌于用亲。
Ju Zhong asked for a significant reward, and Cai Jing told him that the Commandery was an important institution that controlled military power, and it didn't matter if he favored family members when making personnel decisions, unlike the three provincial institutions.