《宋史·列传·卷一百七十三》
中使来到他家，郑清之正在湖光山色中游玩，住在寺院中，一直到傍晚还没回来。
中使及门，清之方放浪湖山，寓僧刹，竟夕不归。
When the imperial envoy arrived at his home, Zheng Qingzhi was spending his time amidst the scenic beauty of lakes and mountains, and he was lodging in a temple. He did not return until evening.