《元史·列传·卷九十六》
诏书说 ：从行省的奏表中得知，去年礼部尚书张立道曾到安南，知道安南的情况，请求派人去诏告安南王来朝。
诏曰： 省表具悉。去岁礼部尚书张立道言，曾到安南，识彼事体，请往开谕使之来朝。
The imperial edict stated: According to a memorial from the Branch Secretariat, Minister of Rites Zhang Liduo visited Annam last year and learned about the situation there. He has requested that someone be sent to summon the king of Annam to court.