《北史·列传·卷五十九》
副将作大匠高龙叉，预先征集丁役，配给东宫役使，修建亭台房舍，进入东宫；率更令晋文建、通直散骑侍郎判司农少卿事元衡，在法律规定之外，私自供给太子资财，虚耗人力，擅自割给园地，并处以自尽。 
副将作大匠高龙叉，预追番丁，辄配东宫使役，营造亭舍，进入春坊；率更令晋文建、通直散骑侍郎判司农少卿事元衡，料度之外，私自出给，虚破丁功，擅割园地。
The deputy commander and the great craftsman Gao Longcha, who had previously recruited the dings, were assigned to the East Palace, built pavilions and houses, and entered the East Palace; followed the order to lead Jin Wenjian, who was a member of the General Secretary of the Shang Shilang’s Mansion, and served as the Shang Nong Shaoqing Yuan Heng’s judge. , In addition to the legal provisions, he privately provided the prince with money, wasted manpower, and arbitrarily gave away the garden land, and he committed suicide.