《汉书·传·文三王传》
等汉帝的使者来接孝王时，孝王已经进了城，但车马都在城外，别人不知道他去哪儿了。
汉使迎王，王已入关，车骑尽居外，外不知王处。
When the Han emperor's envoy came to pick up King Xiao, King Xiao had already entered the city, but his chariot and horses were outside the city, and others didn't know where he had gone.