《北史·列传·卷四十》
他不听，拆到第二层，得到一条白蛇，长有数丈，盘旋爬行，很快就消失了。
不从，破至第二级，得白蛇，长数丈，回旋失之。
He did not listen, and when he tore it down to the second level, he found a white snake, several feet long, that coiled and crawled before quickly disappearing.