《旧五代史·后晋·列传十一》
一天白日睡觉，做梦吃巨大的枣子，醒来后得了病。李郁对他的亲戚朋友说 ：曾经听说 枣 字是 来 字的重叠，是呼唤魂魄的象征。
一日昼寝，梦食巨枣，觉而有疾，谓其亲友曰： 尝闻 枣 字重 来 ，呼魂之象也。
One day, sleeping in the daytime, he dreamed of eating huge dates. After waking up, he fell ill. Li Yu said to his relatives and friends: "I have heard that the word 'date' is the repetition of the word 'come', symbolizing the call of the soul.