《太平广记·卷二百四十·谄佞二》
从今后，你们谁再随意向皇上奏疏，他的下场就象那匹鸣叫不听使役的马一样。
虽欲再鸣，其可得乎。
From now on, anyone who dares to submit a memorial to the emperor will suffer the same fate as those horses that make noise and disobey orders.