《梁书·列传·卷十八》
魏人相信了这话，果真凿了一个山洞，深五丈，在堤上开洞，让水向北注入山洞，河水日夜分流，洞中的水却仍然不减。
魏人信之，果凿山深五丈，开湫北注，水日夜分流，湫犹不减。
The people of Wei believed this and really dug a hole in the mountain, five feet deep, to pour the water into the hole from the north into the mountain cave. The river water flowed day and night into the hole, but the water in the hole remained undiminished.