《太平广记·卷三百九十一·铭记一》
那是说到五百一十一年坟墓将坍塌。从大同四年向上追溯五百一十一年，是汉光武帝建武四年即戊子年。 三上庚 ，说的是三月上甸的庚日，那年三月辛巳是朔日，即初一，再过十日是庚寅日，因此是三月初葬于钟山的。 七中巳 ，说的是七月戊午朔日，也是初一，再过十日便是己巳日，这便是坟墓刚刚坍塌的日子。这一天是己巳可以知道了。 浃辰 是十二，从建武四年三月到大同四年七月，总共为六千三百一十二个月，每月一交替，所以说 六千三百浃辰交 。 二九 是十八， 重三 是六，尾字是 四百 ，六就是千数，十八可知是万数。
其年三月辛巳朔，十日得庚寅，是三月初葬于钟山也。 七中巳 ，乃七月戊午朔，十二日得己巳，是初圯堕之日，是日己巳可知矣。 浃辰 十二也，从建武四年三月，至大同四年七月，总六千三百一十二月，每月一交，故云六千三百浃辰交也。二九为十八，重三为六，末言四百，则六为千，十八为万可知。
That is to say, the tomb will collapse in 511 years. Tracing back 511 years from the fourth year of Datong, it is the fourth year of Guangwu Emperor Liu of the Han Dynasty, which is the year of Wuxu. "Three Shang Geng" refers to Geng Day on Shang Dian in March. The first day of the first month in March of that year was Xin Si. Ten days later it was Geng Yin Day, so it was the beginning of March to be buried in Zhongshan. "Seven in the middle" refers to the first day of the first month of July, which is also the first day of the first month, and ten days later it was the first day of the second month, which was the day when the tomb just collapsed. It can be known that this day is Ji Si. "Jiacchen" is twelve. From the day of the burial on Gengyin in March of the fourth year of Jianwu to the day of the collapse in July of the fourth year of Datong, there are a total of 6,312 months, with one alternation each month, so it is said that "the intersection of 6,300 Jiacchen". "two nine" is eighteen, "重san" is six, the tail word is "four hundred", six is thousand, eighteen can be known as ten thousand.