《元史·本纪·卷十》
初八，派礼部尚书柴椿和安南国使臣杜中赞一起带着诏书前往晓谕安南国的世子陈日火亘，要求他前来朝见。
壬子，遣礼部尚书柴椿偕安南国使村中赞赍诏往谕安南国世子陈日烜，责其来朝。
On the 8th, the Minister of the Ministry of Rites Chai Chun and the envoy of Annam Du Zhongzan were sent to deliver the imperial decree to Prince of Annam Chen Rihuogen, asking him to come to pay homage.