《旧唐书·列传·卷七十三》
窦参以前任大理司直，班宏已任刑部侍郎，到窦参任宰相，兼任度支使，皇帝因为班宏长期掌管国家收支，因此命他做副手。
参初为大理司直，宏已为刑部侍郎，及参为相，领度支，上以宏久司国计，因令副之。
Dou Cen used to be the Supervisory Judge of the Censorate. When he became prime minister and concurrently served as the financial controller, the emperor had Ban, who had managed the national income and expenditure for a long time, work as his assistant because of his experience.