《后汉书·列传·郭杜孔张廉王苏羊贾陆》
匈奴曾经以一万骑侵入渔阳，张堪率数千骑奔袭，大破匈奴兵，渔阳郡界得以安静。
匈奴尝以万骑入渔阳，堪率数千骑奔击，大破之，郡界以静。
The Huns once invaded Yuyang with 10,000 cavalry, Zhang Kan led thousands of cavalry to attack, defeated the Huns, and the border of Yuyang County was quiet.