《北史·列传·卷四十四》
魏收回答说 ：晋朝的议郎董勋著的《答问礼俗》中说：正月一日为鸡，二日为狗，三日为猪，四日为羊，五日为牛，六日为马，七日为人。 
收对曰： 晋议郎董勋答问礼俗云：正月一日为鸡，二日为狗，三日为猪，四日为羊，五日为牛，六日为马，七日为人。 
Wei Shou replied: “The Gentleman Consultant of the Jin Dynasty, Dong Xun, wrote in his Responding to Questions about Rituals and Customs: ‘The first day of the first month is the day of the rooster, the second day of the dog, the third of the pig, the fourth of the sheep, the fifth of the ox, the sixth of the horse, and the seventh of man.’”