《梁书·列传·卷五十四》
杜瑗死后，林邑国没有一年不进犯日南、九德等郡，杀伤很多人，交州于是力量虚弱。
自瑗卒后，林邑无岁不寇日南、九德诸郡，杀荡甚多，交州遂致虚弱。
After Du Yuan's death, the Kingdom of Linyi did not fail to invade the counties of Rinan and Jiude for a single year, killing and injuring many people. Jiaozhou became weak.