《太平广记·卷四百一十三·草木八》
他睡眠的梁下，有一个柟木的短柱。这短柱离地四尺，有节子。
眠于梁下，短柱是柟木，去地四尺余，有节。
Under the wooden beam where he slept, there was a short post made of fragrant nanmu. This short post was four feet from the ground, and had knots.