《资治通鉴·唐纪·唐纪十》
太宗勃然大怒，对房玄龄等人说： 德参想要国家不役使一个人，不收一斗地租，宫女均不留发，这样才顺他的心思吗！ 
上怒，谓房玄龄等曰： 德参欲国家不役一人，不收斗租，宫人皆无发，乃可其意邪！ 
Emperor Taizong was furious and said to Fang Xuanling and others: De Zhen wants the state not to employ a single person, not to collect a single bushel of land rent, and for the palace maids not to keep their hair. Is this what suits him?