《旧唐书·列传·卷十七》
皇帝命令百官送到旧城西北，所筑的坟都依卫青、霍去病的先例为准，仿照阴山、铁山及乌德革建山，用来表彰他击败突厥、薛延陀的功劳。
诏百官送至故城西北，所筑坟一准卫、霍故事，象阴山、铁山及乌德鞬山，以旌破突厥、薛延陀之功。
The emperor ordered all the officials to send him to the northwest of the old city. The graveyard was built according to the precedent of Wei Qing and Huo Qubing, modeled on Yinshan, Tieshan and Wudengjian Mountain, to commend his feats in defeating the Turks and Xue Yantuo.