《隋书·列传·卷三十二》
另外，越王杨侗派太常丞元善达从反贼地区偷偷到江都报告事情，说李密有上百万人，围逼京都。反贼占据了洛口仓，京城中没有粮食。
方更鬻官卖狱，黩货无厌，颠陨厥身，亦其所也。
In addition, King of Vietnam, Yang Dong, sent Taichangcheng Yuan Shanda to secretly report the matter from the rebel area to Jiangdu, saying that Li Mi had millions of people besieging Kyoto. The rebels occupied the Luokou warehouse, and there was no food in the capital.