《资治通鉴·唐纪·唐纪五》
世长回答： 陛下游猎，只稍稍耽误了政事，打猎不足十旬，还称不上高兴！ 
世长对曰： 陛下游猎，薄废万机，不满十旬，未足为乐！ 
Shichang replied: Your Majesty went on a hunting trip, which only delayed some government affairs. The hunting trip lasted for less than ten days, so it doesn't count as feeling happy!