《辽史·列传·卷三十二》
皇上私下对奉先说： 没想到阿骨打如此跋扈！可借口边事诛杀他。 
上密谓奉先曰： 阿骨打跋扈若此，可托以边事诛之。 
The emperor said secretly to Fengxian, "I didn't expect Aguda to be so arrogant! We could seize upon the border incident to execute him."