《汉书·志·五行志下之上》
成帝建始三年十月丁未，京师的人们相互惊恐，说大水要来了。
成帝建始三年十月丁未，京师相惊，言大水至。
On the tenth day of Dingshen in October of the third year of Emperor Cheng's Jianshi reign, the people in the capital were terrified, saying that a great flood was coming.