《太平广记·卷二百五十二·诙谐八》
司马都道：何必如此，你乍起大胡子，怎会是这样的面色。你看看这口深井吧，下面可是有人啊。
都徐曰：何至如此，足下吒一抱之髭须，色斯举矣；望千寻之玉甃，井有人焉。
Sima said: "Why bother? How come you grow such a long beard and have this expression on your face? Look at this well. There is someone below."