《资治通鉴·唐纪·唐纪六十九》
于是辛谠派遣大将杜弘等人带着书信和钱物，送段宝回归南诏国，只留下荆南、宣歙等数支军队戍守邕州，其余诸道军队裁减十分之七。
谠遣大将杜弘等赍书币，送瑳宝还南诏，但留荆南、宣歙数军戍邕州，自馀诸道兵什减其七。
Xin sent general Du Hong and others, with a letter and gifts, to escort Duanbao back to his country, and left only some forces from Jingnan and Xuanan to defend Yongzhou, while dismissing seven-tenths of all other units.