《太平广记·卷三十七·神仙三十七》
他让严士则到药室拿来一个锅，拾柴打水，把一粒放在锅里煮了好久，略有香味，一看，已经象手掌那样大了。那人说： 可以吃了，渴了就喝锅里的汤。
曰： 可以食矣。渴即取铛中余水饮之。 
He asked Yan Shi to get a pot from the medicine room, gathered firewood and collected water, and placed one inside the pot and boiled it for a long time. It emit­ted a slight fragrance and when he took a look, it was already as large as his palm. The man said: You can eat it now, and if you’re thirsty, drink the soup in the pot.