《北史·列传·卷八十二》
夫余国王曾得到河伯的女儿，便关闭在房内，因被太阳照射，她抽身躲避，太阳光又追逐她，不久怀有身孕，生下一蛋，大如五个头。
王尝得河伯女，因闭于室内，为日所照，引身避之，日影又逐，既而有孕，生一卵，大如五升。
The King of Fuyu met the daughter of a river deity, and imprisoned her in a room. She was exposed to the sun and hid from it, and was soon found to be pregnant. She laid an egg, which was big enough to fit five heads.