《仪礼·燕礼》
主人面朝北洗手，坐下取觚洗涮，主宾稍进前说： 谢洗觚。 
主人北面盥，坐取觚洗。宾少进，辞洗。
The owner faces north to wash his hands, sits down to take the cup to wash and rinse, and the guest steps forward slightly to say: Thank you for washing the cup.