《太平广记·卷二百三十六·奢侈一》
汉成帝坐在飞行殿中，只觉得耳边呼呼风响如同听到风雷的声音，这是说飞行殿行走得极为疾速。
帝于辇上坐，但觉耳中若闻风雷之声。
Emperor Cheng of Han sat in the flying palace, only feeling the wind whistling in his ears, as if hearing the sound of thunder and wind, which meant that the flying palace was walking very fast.