《宋史·列传·卷一百三十一》
王庶由于士卒寡少，登记兴、洋各地和三泉县强壮居民，两丁取一，三丁取二，号称 义士 ，每天在县里训练，每月到州里训练，对他们给予优厚的待遇，不到半年，有兵达到数万人。
庶以士卒单寡，籍兴、洋诸邑及三泉县强壮，两丁取一，三丁取二，号 义士 ，日阅于县，月阅于州，厚犒之，不半年，有兵数万。
Due to the shortage of soldiers, Wang Shu registered the strong residents of Xingyang and Sanquan counties, took one out of two and two out of three, and called them "righteous men". They were trained in the county every day and in the prefecture every month. He treated them preferentially, and in less than half a year, the number of soldiers reached tens of thousands.