《后汉书·列传·伏侯宋蔡冯赵牟韦列传》
当时藩国官属出入宫省，与百官无所分别，赵憙就表奏由近侍护送，分止他县，诸王各归就邸，只有早晚入临。
时，籓国官属出入宫省，与百僚无别，憙乃表奏谒者将护，分止它县，诸王并令就邸，唯朝晡入临。
At that time, officials of the vassal kingdoms came in and out of the palace, just like the court officials, so Zhao Xi memorialized to have the Emperor's close attendants escort them, to separate them into other counties, and have each of the kings return to their palaces, only coming to the court in the mornings and evenings.