《太平广记·卷三百六十六·妖怪八》
等到宋洵住进去之后，趁着月夜，在书堂旁边散步，又自己听到石中说：宋三郎来了！
及洵居之，因月夜，于书堂侧屣步。又自闻石中云：宋三郎来矣！
After Song Xun moved in, one night, while he was taking a walk beside the classroom by the moonlight, he heard the stone said again: The Third Young Master of Song is here!