《太平广记·卷七十七·方士二》
芦生摇笺成卦，对辟说： 我在二十年前曾给一个人算过一卦，乃得无妄之卦，今天又出现了以前那一卦，莫非您就是过去那个人么？ 
生揲蓍成卦，谓辟曰： 吾二十年前，尝为一人卜，乃得无妄之随。今复前卦，得非曩贤乎？ 
Lsheng shook bamboo slips to set a hexagram, and said to Bi: I made a hexagram to a person twenty years ago and got the "No Folly" hexagram. I got the same one again today. Could you be that person from the past?