《太平广记·卷四百一十五·草木十》
后一个夜晚，巨人忽然而至，许元长坐在堂屋的西窗下，许元长投出一符直飞过去，击中了巨人的手臂。
后一夕，元长坐于堂西轩下，巨人忽至，元长出一符飞之，中其臂。
Later one night, the giant suddenly arrived, and Xu Yuanchang sat under the west window of the hall, and Xu Yuanchang cast a talisman and flew straight over, hitting the giant's arm.