《太平广记·卷四百一十一·草木六》
魏肇师说： 魏武曹操说过， 夏末秋初，天气仍有点热，酒醉一宿忽然醒来，带着露水吃葡萄，甜而不是糖，酸而不是醋。 
魏肇师曰： 魏武有言， 末夏涉秋，尚有余暑，酒醉宿醒，掩露而食，甘而不饴，酸而不酢。 
Wei Zhaoshi said, Wei Wu Cao Cao once said that in the late summer and early autumn, the weather is still a bit hot. After getting drunk, I wake up suddenly, and eat grapes with dew. It is sweet but not sugary, and sour but not like vinegar. 