《左传·昭公·昭公十七年》
只有周正六月初一，阴气没有发作，发生日食，才击鼓用祭品，这是礼制。
唯正月朔，慝未作，日有食之，于是乎有伐鼓用币，礼也。
Only in the extreme of June, the first day of the first month, when the Yin Qi had not yet begun to function, and an eclipse of the sun took place, did they beat a drum and make an offering, This was the ritual.