《太平广记·卷四百一十五·草木十》
那两块板子忽然间随他来到石头城，他大吃一惊，心想，这河边的两块板子来，一定是有意的。
其板忽随至石头，友惊曰： 此陂中板来，必有意。 
The two planks suddenly followed him to Stone City. He was shocked, thinking that their appearance must be intentional. 