《资治通鉴·唐纪·唐纪七十七》
每当有西川节度使到任，这三个王就率领地方酋长前往节度使司恭贺，节度使自以为是朝廷的威武恩德使他们顺从敬服，就上表呈报朝廷。
每节度使到官，三王帅酋长诣府，节度使自谓威德所致，表于朝廷。
Whenever a new Imperial Protector of Xichuan was appointed, the three kings would lead the local chiefs to the Imperial Protector's office to congratulate him. The Imperial Protector thought that the mighty virtue of the court had made them submit and respect him, so he sent in a memorial to the court.