《宋书·列传·卷九十二》
杜瑗去世，府州官吏们认为交州与外国相邻，应天天都有刺史，共同推举杜慧度代管交州府中事务，杜慧度坚决辞让不接受。
瑗卒，府州纲佐以交土接寇，不宜旷职，共推慧度行州府事，辞不就。
When Du Yuan died, the prefecture officials believed that Jiaozhou was adjacent to foreign countries and should have a governor every day, and unanimously recommended Du Huidu to take charge of the government affairs of Jiaozhou, but Du Huidu firmly declined.