《隋书·列传·卷十五》
高祖曾说到为北周丞相时，因此怜爱李安兄弟灭亲奉国，于是下诏说： 先王立教，以义断恩，割舍亲爱之情，以尽事君之道，用以弘扬大节，体察至公。
高祖尝言及作相时事，因愍安兄弟灭亲奉国，乃下诏曰： 先王立教，以义断恩，割亲爱之情，尽事君之道，用能弘奖大节，体此至公。
Gaozu once mentioned that when he was the prime minister of the Northern Zhou Dynasty, he admired the brother of Li An for killing his relatives to serve his country. Therefore, he issued an edict, saying: The former emperor established the teaching to cut off the grace with righteousness, to get rid of dear feelings and to serve His Majesty for promoting the great standards and observing the public.