《资治通鉴·后晋纪·后晋纪三》
南唐主惋惜悔恨好多天，自己认为对告诫敕令之类的事情不熟练，把握不住。
唐主惋恨累日，自以戒敕之不熟也。
The Southern Tang master regretted and lamented for many days. He thought that he himself was not adept at giving warnings and orders and could not control the situation.