《旧唐书·列传·卷四十》
杜景俭独说： 按《洪范五行传》： 阴阳不能混乱，违反了就会有灾。 
景俭独曰： 谨按《洪范五行传》： 阴阳不相夺伦，渎之即为灾。 
Du Jingjian alone gave a different answer: “According to the ‘Five Principles of the Hongfan’: “Yin and yang cannot be confused, violating this principle will lead to disasters.”