《太平广记·卷一百三十七·征应三》
怀玉怀着满腹冤屈没有地方申诉，就在狱中用石头堆起了一个佛像，并默默的祈祷请求神灵帮助。
怀玉抱冤无诉，于狱中叠石像佛，默祈冥助。
Huaiyu had nowhere to appeal with his grievances, so he piled up a Buddha statue with stones in prison and prayed silently for God's help.