《周礼·春官宗伯·小宗伯》
凡祭祀或招待宾客，按时奉送行裸礼用的玉勺。告教群臣行祭祀小礼。
凡祭祀、宾客，以时将瓒果，诏相祭祀之小礼。
In all sacrifices or receptions for guests, the jade spoon used for the naked ceremony shall be offered according to the time. Teach all the ministers to perform small sacrificial ceremonies.