《周书·列传·卷四十六》
后来在墓南营造一个禅窟，阴雨天则建窟，晴天则建墓，朝夕勤奋努力，从未停止。
后于墓南作一禅窟，阴雨则穿窟，晴霁则营墓，晓夕勤力，未尝暂停。
Later, a Zen cave was built to the south of the tomb. On rainy days, the cave was built, and on sunny days, the tomb was built. He worked hard day and night, never stopping.