According to a description of Saemonfu of the Left and Right (the offices that safeguarded palace gates) in Volume 46 of Engishiki jinmyocho (a list of shrines), Komainu were placed on the left side of the Kaiin-mon gate on a Taigibi day (a day of an imperial ceremony) and returned to Saemonfu when the ceremony was over.
延喜式神名帳巻第46の左右衛門府に、大儀日にじ像を会員門左に置き終了時に本府に返却する。