It is famous that Rokuso Eno (the sixth leader Eno) had been in charge of rice milling as Ro-anja at the temple of Goso Konin (the fifth leader Konin) on Mt. Obai when Eno was acknowledged as the sixth leader by Konin.
禅宗六祖の慧能が、五祖の弘忍のいた黄梅山で「盧行者」として米搗きに従事していた時に弘忍から六代目として認められた事例が有名である。