《后汉书·列传·郭杜孔张廉王苏羊贾陆》
建武五年，河西大将军窦融请孔奋署议曹掾，代理姑臧长。
建武五年，河西大将军窦融请奋署议曹掾，守姑臧长。
In the fifth year of Jianwu, General He Xi Dou Rong invited Kong Fen to be the Secretary of the Council and act as the head of Guzang.