《晋书·志·第十八章》
魏齐王嘉平初年，东郡流传谣言，说一白马河出了妖马，夜间经过官府牧马场边呜叫，群马都呼应，第二天看到它的蹄迹，像斛一样大，行走数里，返回河裹。
魏齐王嘉平初，东郡有讹言，云白马河出妖马，夜过官牧边鸣呼，众马皆应，明日见其迹，大如斛，行数里，还入河。
During the early years of King Jiaping of the Wei Qi dynasty, a rumor spread in Dongjun that a monstrous horse had appeared in Baima River. At night, it passed by next to the official pasture and let out a cry, which the stabled horses responded to. The next day, large hoof prints, the size of a bucket, were found. It had traveled several li before returning to the river.