《旧唐书·本纪·卷十一》
夏四月二十六日，皇上诏令，尚书省的郎中可授予中等州郡的刺史，尚书省的员外郎可授予下等州郡的刺史，成为定规。
夏四月辛亥，诏尚书省郎中授中州刺史，员外郎授下州刺史，为定制。
On the 26th day of the April, the Emperor ordered that the Ministry of Justice should give the post of the Governor of medium-sized counties, and the members outside the Ministry of Justice could be granted the position of inferior counties.