《元史·列传·卷四十九》
大渊说 ：我真的不知道国朝的礼仪，因想到出来已久，怕城寨有不测之变，所以急忙回城，不敢有什么阴谋。 
大渊曰： 诚不知国朝礼体，且久出，恐城寨有他变，是以亟归，非敢有异谋也。 
Dayuan said: “I am truly ignorant of the etiquette of the national court; I only thought that I had been gone for too long and feared that there would be unforeseen changes in the stronghold, so I hurried back to the city. I did not dare to have any sinister motives.”