《史记·七十列传·龟策列传》
在白蛇蟠林中寻求神龟的人，斋戒以待，恭恭敬敬地，那样子就好像有人来告诉神龟的消息似的，而且用酒洒地祭神，披散着头发，乞求神龟三天三夜才能得到。 
求之於白蛇蟠杅林中者，斋戒以待，譺然，状如有人来告之，因以醮酒佗发，求之三宿而得。 
People who seek the divine turtle in the White Snake Pan forest, prepare for fasting and wait respectfully, as if someone is here to tell the news to the divine turtle, and sprinkle wine on the ground to make offerings to the gods, loosen their hair, and ask for the divine turtle for three days and three nights before they can get it.