《太平广记·卷一百五十二·定数七》
活君家室以为报，珍重长沙郑德璘。 
活君家室以为报，珍重长沙郑德璘。 
The old man took a pen and wrote on the kerchief of Wei Sheng's daughter, "I was once the gatherer of water-caltrops and waterchestnuts by the river, and you gave me mulberry spirit in spring.  I repay my debt by preserving your life. Respectfully, Cheng Te-lin of Changsha."