《资治通鉴·唐纪·唐纪七十三》
广陵城内的人们竞相带着珠宝玉器黄金绸缎到张雄的军营换取粮食，一个通天犀带，只换得大米五升，一个锦缎被子，只换得粗糠五升。
广陵人竞以金玉珠缯诣雄军贸食，通犀带一，得米五升，锦衾一，得糠五升。
People in Guangling City rushed to bring jewelry, jade, gold, and silk to Zhang Xiong's military camp to exchange for food. A unicorn belt could only be exchanged for five liters of rice, and a silk quilt could only be exchanged for five liters of bran.