《宋史·列传·卷六十九》
当地有位百姓白天失去了他的妻子，杜衍为了捕捉杀人贼采用了一定的谋略，立即捕捉了杀人贼，将埋葬的尸体发掘出来，还获得了贼杀死其他妇人的两具尸体，秦人大为震惊。
民有昼亡其妇者，为设方略捕，立得杀人贼，发所瘗尸，并得贼杀他妇人尸二，秦人大惊。
There was a local commoner who lost his wife during the day. In order to capture the murderer and robber, Du Yan used a certain strategy and immediately captured the murderer and robber, dug out the buried corpse, and also found two corpses of other women killed by the robber, which greatly shocked the people of Qin.