《辽史·列传·卷二》
倍得知皇太后想要立耶律德光，便对公卿们说： 大元帅功业及德行及于人民与神癨，内外官员同心拥护，应该为社稷之主。 
倍知皇太后意欲立德光，乃谓公卿曰： 大元帅功德及人神，中外攸属，宜主社稷。 
When Bei knew that the empress dowager wanted to make Yelü Deguang emperor, he said to the high officials: "The achievements and morality of the grand marshal are widely acknowledged by people and gods. The officials inside and outside the court all support him together. He should be the master of the country."