《太平广记·卷四百五十八·蛇三》
就传授他禁制天地之间蛇类的法术，环宇之内，只有他一个人懂得这种法术。
授之禁天地蛇术，环宇之内，唯一人而已。
He taught him the technique of restraining snakes between heaven and earth. In the whole world, he was the only person who knew this technique.