《左传·昭公·昭公四年》
大夫和妻子死后洗擦身体要用冰。祭祀司寒之神而加以收藏，奉献羔羊祭祖打开冰室，国君最早使用。
祭寒而藏之，献羔而启之，公始用之。
When a doctor’s wife dies, their bodies are washed with ice. The ice is stored in the ice store by being sacrificed to the God of Cold, a lamb is offered to the ancestors, and the ice store is opened by the monarch, who uses it first.