《资治通鉴·汉纪·汉纪二十八》
这时元帝的后代断绝了，而宣帝的曾孙有为王的五人，为列侯的四十八人，王莽厌恶他们已经长大，便说： 兄弟之间不能互相作为后代。 
时元帝世绝，而宣帝曾孙有见王五人，列侯四十八人。莽恶其长大，曰： 兄弟不得相为后。 
At this time, Emperor Yuan's descendants were cut off, and Emperor Xuan's great-grandson had five kings and forty-eight marquises. Wang Mang hated that they had grown up and said: Brothers cannot be descendants of each other.