《宋史·列传·卷一百九十》
邢昺说 ：老百姓受灾最严重的有四种情况：一是瘟疫，二是旱灾，三是水灾，四是畜灾。
又言： 民之灾患，大者有四：一曰，疫，二曰旱，三曰水，四曰畜。
Xing Bing said: The four most serious disasters for the common people are: One is plague, the second is drought, the third is flood, and the fourth is animal disaster.