《资治通鉴·唐纪·唐纪二十六》
太子李隆基知道这个消息后，赶忙入宫朝见，跪在地上边叩头边说： 臣因尺寸之功，就被破格立为皇嗣，即使是做太子还担心无法胜任，陛下又突然要将帝位传给臣，不清楚这究竟是为了什么！ 
太子闻之，驰入见，自投于地，叩头请曰： 臣以微功，不次为嗣，惧不克堪，未审陛下遽以大位传之，何也？ 
After hearing this news, Prince Li Longji immediately entered the palace to greet the emperor, and while kneeling on the ground kowtowed and said: I have achieved only insignificant success, and yet I have been exceptionally established as the heir to the throne. Even as Crown Prince, I am worried that I am not up to the task. Why have you suddenly instructed me to take over the position of emperor?