《太平广记·卷二百四十·谄佞二》
第二天，玄宗召集宰相们上朝议事，说自己想回驾西京长安。
明日，召宰相，欲西幸。
At that time, Li Linfu had just been promoted to prime minister. Having analyzed the reason why Emperor Xuanzong wanted to return to Chang'an, he pretended to limp and stay behind after the court session. Emperor Xuanzong asked, "Why are you limping?" Li Linfu replied, "My leg is not injured. I'm not limping."