《仪礼·士昏礼》
赞洗爵，在室外的尊中斟酒。进门，面朝西北，置爵于地一拜，新婿、新妇皆答拜。
赞洗爵，酌于户外尊，入户，西北面奠爵，拜。皆答拜。
The best man washes the cup and fills it with wine from a container outside the room. He then enters, faces northwest, places the cup on the ground, and bows once. The groom and bride both bow back.