《周书·列传·卷五十》
魏庆查二年，左担率领大军至姑越，童旦相当惧怕，派遣使者贡献特产。
魏废帝二年，太祖勒大兵至姑臧，夸吕震惧，遣使贡方物。
In the second year of Wei Qing查, Zuo Dan led an army to Gu Yue, where Tong Dan was greatly frightened, and sent envoys to pay tribute to local products.