Tripitaka said, "I am a monk dispatched from the Great Tang in the Eastern Land to Great Thunderclap, to bow before the Buddha and seek the scriptures. Having now reached your honoured territory, I wish to have my papers exchanged and stamped, and I have come expressly to attend upon Your Highness."

Three points of vocabulary and each is exact. 差 is chāi, dispatched on official business, not the reading that means to differ. 倒 is dǎo in 倒換, to exchange one thing for another — the papers are handed over, stamped, and handed back. And 千歲, a thousand years, is the acclamation reserved for a prince; the form for an emperor is ten thousand years, and the novel uses that one for the Jade Emperor and never for this man. Tripitaka has read the rank correctly before he is through the door.

The protocol officer at once passed the request up for him.

傳奏 is to transmit a memorial to the throne — the formal channel by which anything reaches a ruler. 為 is wèi here, on his behalf, doing the small job of showing that the officer is acting for Tripitaka rather than of his own motion.