《史记·七十列传·西南夷列传》
唐蒙就上书皇上说： 南越王乘坐黄屋之车，车上插着左纛之旗，他的土地东西一万多里，名义上是外臣，实际上是一州之主。
蒙乃上书说上曰： 南越王黄屋左纛，地东西万馀里，名为外臣，实一州主也。
Tang Meng then wrote to the emperor and said, “The king of Nanyue rides in a yellow carriage and flies the banner with the left pole. His land extends over ten thousand li east to west and, while they are nominally foreign ministers, in reality they are the lords of a prefecture.”