《太平广记·卷三百九十八·石（坡》
第二天挖掘发光的地方，挖到一只陶瓮，大肚小口，里面装满了青色的石头。
明日掘其地，得一瓮，大腹小口，青石塞之。
The next day, he excavated the place where the light was and found a clay jar with a big belly and small mouth, which was filled with blue stones.