《太平广记·卷一百九十五·豪侠三》
二人意气相投，卢生也谈到一些冶炼技术，他说外婆家姓唐，便叫唐山人为舅舅。
后于楚州逆旅遇一卢生，意气相合，卢亦语及炉火。称唐族乃外氏，遂呼唐为舅。
The two hit it off, Lu Sheng also talked about some smelting techniques. He said his maternal grandmother's family name was Tang, so he called the Tangshan people his maternal uncle.