《魏书·帝纪·卷一》
五年，晋元帝司马睿派使臣韩畅给拓跋郁律加官晋爵，拓跋郁律予以拒绝，操练兵马，加强军备，有平定南方之志。
五年，僭晋司马睿遣使韩暢加崇爵服，帝绝之。治兵讲武，有平南夏之意。
Five years later, Emperor Yuan of the Jin, Sima Rui, sent the envoy Han Chang to bestow upon Tuoba Yulü a new official rank and nobility, which Tuoba Yulü declined, instead training troops and improving equipment in preparation for conquering the south.