Originating from the 18 Luohan hands, Jueyuan in the 13th century expanded its 18 techniques to 72. Still, he felt the need to seek knowledge from outside the confines of the temple.
Li Sou accompanied Jueyuan back to Henan to introduce Jueyuan to Bai Yufeng, a master of an internal method and Wuzuquan. Li Sou's real name was Li Yuanshou (Li Sou means simply "old man").