He would then walk round behind the seppukunin and purify the kaishaku sword with water using a mizuhishaku (water ladle) and assume the hasso stance (various theories exist regarding the stance).
そして、正介錯人は後ろに回り、介錯刀に水柄杓で水を掛けて清め、八双に構える（構えには諸説ある）。