《汉书·传·眭两夏侯京翼李传》
哀帝即位不久，召李寻为待诏黄门，派侍中卫尉傅喜问李寻说： 前些时候地震水涌，日月不按常规运行，星辰紊乱，灾异频频发生，愿您畅所欲言，不要有所顾忌。 
哀帝初即位，召寻待诏黄门，使侍中卫尉傅喜问寻曰： 间者水出地动，日月失度，星辰乱行，灾异仍重，极言毋有所讳。 
Not long after Emperor Ai ascended to the throne, he summoned Li Xun to be an official in the Yellow Gate and sent Fu Xi, the servant of the servant, the servant, to ask Li Xun and say: Recently, earthquakes and water surges, the sun and the moon do not run regularly, the stars are disordered, and disasters occur frequently. , I wish you to speak freely, without any scruples.