《容斋随笔·卷七·洛中盱江八贤》
官人听后，不禁产生疑虑，以为他是喜爱这匹骡子，便问他究竟是怎么一回事？
策请试以鞍，亢亢终日不得被，始谢还焉。
After listening to him, the official couldn't help but have doubts, thinking that he liked this mule, so he asked him what was going on.