《资治通鉴·唐纪·唐纪七十八》
自今以后，依照大中年间的旧制，等到宰相奏事完毕，枢密使才能进殿接受公事。 
自今并依大中旧制，俟宰臣奏事毕，方得升殿承受公事。 
"From now on, in accordance with the old system of the Dazhong era, the director of the Privy Council can only enter the hall to receive official business after the prime minister has finished submitting matters."