《资治通鉴·唐纪·唐纪三十三》
杨国忠听后大为恐惧，退朝后对韩国、虢国和秦国三夫人说： 太子早就恨我们杨家专权，如果让他当皇帝得天下，我与姊妹们的生命将会危在旦夕！ 
杨国忠大惧，退谓韩、虢、秦三夫人曰： 太子素恶吾家专横久矣，若一旦得天下，吾与姊妹并命在旦暮矣！ 
Yang Guozhong was terrified after hearing this. After the court session ended, he said to the three ladies of Korea, Guo, and Qin: “The Crown Prince has long hated that our Yang family has monopolized power. If we let him inherit the throne and rule the world, my sisters and I will have to live in fear all the time!”