Volume 3 of "Collected Commentary of Liezi" "The Chapter of King Mu of Zhou":
The people of Zheng who were paid to go out in the wild would occasionally frighten a deer, attack it and kill it. Afraid of being seen by others, he hid among the gods and covered them with bananas. Overjoyed. He left it where it was hidden and thought it was a dream. Follow Tu and chant his story.
If someone nearby hears it, use his words to get it. After returning home, he told his family: "The man who asked for the salary dreamed of getting a deer but didn't know where it was. I have found it now, and it was really a dream." The man said, "What if it is the dream of the person who saw the salary? The dream of the salary is evil? Now I really get a deer, if the dream is really evil?" The husband said, "I have a deer, what use is it to know that I dreamed of a deer?"
Those who earn money will never be tired of losing deer. The place where true dreams are hidden at night, and the master of dreams. Shuangdan found it in the dream of the case. So he filed a lawsuit and fought over it, and returned to the army. The judge said: "If I really got a deer in the first place, I was mistakenly calling it a dream; if I really dreamed of a deer, I was mistakenly telling the truth. I really took Ruo deer, and competed with Ruo for the deer. The people in the house also said that I dreamed of Ren Renren deer, and no one got the deer. Now that I have this deer, please divide it into two."
I heard about Mr. Zheng. Zheng Jun said: "Hey! Did the scholars divide the dream into deer?" He visited the prime minister. The Prime Minister said: "I cannot distinguish between dreams and non-dreams. If you want to distinguish between dreams, the only one who can distinguish between them is Huangdi Confucius. Now that Huangdi Confucius has died, who can tell the difference? You can also follow the words of the scholars."
Intention: Those who have gone by cannot be remonstrated, but those who have come can still be pursued.