《太平广记·卷二百四十七·诙谐三》
高祖大□□□高坐，石动筒手提衣襟远远地站在那儿，问大德法师：你看我有几只脚？
高祖大□□□高坐褰衣阔立，问僧：看弟子有几个脚。
The High Ancestor was sitting high up, while Shidongtong was standing far away with his hands on his lapels. He asked the Great Virtuous Monk: How many feet do you think I have?