《汉书·传·赵充国辛庆忌传》
公主没有儿子，就教赵钦的良人习假称怀有身孕，实际上是别人的儿子。
主亡子，主教钦良人习诈有身，名它人子。
The princess did not have a son, so she taught Zhao Qin's good man Xi to pretend to be pregnant, but in fact the child belonged to someone else.