《太平广记·卷一百零六·报应五（》
几年后，相国郑公因做东都留守，才召回衎和杨媛，问他们的经历，并让他把书拿来。
数岁，相国郑公絪为东都留守，乃召衎及杨媛往，问其本末。
Years later, Chancellor Zheng Gong was recalled to the east capital as a governor, and called Kan and Yang Yuan back, asking them about their experiences and to bring the book for him.