《旧唐书·本纪·卷十三》
每年得钱三百万贯，叫做户部别外钱，朝廷臣子每年支出不过五十万，常常有二百多万以资助国家取用。
岁得钱三百万贯，谓之户部别处钱，朝臣岁支不过五十万，常有二百余万以资国用。
Every year, three million guan of currency was collected, called the separate treasury money of the Ministry of Revenue. The officials of the imperial court only spent a total of 500,000 each year, with over 2 million guan often left over for use by the state.