《汉书·传·西域传上》
汉朝虽都接受了这三国的质子，可是这三国背地裹仍互相往来，看到机会，便发端生事。这三国合也不会很亲密，离也不能相臣服。
汉虽皆受其质子，然三国内相输遗，交通如故，亦相候司，见便则发；合不能相亲信，离不能相臣役。
The Han Dynasty accepted hostages from these three countries, but these countries still had secret communication between them, and would start trouble whenever they saw an opportunity. The three countries were neither friendly nor submissive to each other.