《元史·列传·卷五十》
世祖点头称是，又问德辉： 祖宗的法度俱在，而许多未能付诸实施，该如何是好？ 
世祖然之。因问德辉曰： 祖宗法度具在，而未尽设施者甚多，将如之何？ 
Shizu nodded and said yes, and asked Dehui: The rules and regulations of our ancestors are all here, however many have not been implemented, what should we do?