《汉书·传·景十三王传》
昭信想独霸王爱，说： 王使明贞夫人主管诸姬，淫乱难以禁止。
昭信欲擅爱，曰： 王使明贞夫人主诸姬，淫乱难禁。
Zhaoxin wanted to monopolize the king's love, and said: "The king let Lady Mingzhen oversee the concubines, and the debauchery was rampant."