且慢車駕 Halt The Carriage A Moment
那獃子急縱雲頭，上山攔住，厲聲高叫道：「真君，且慢車駕，有齊天大聖請見哩。」那爺爺見說，即傳令，就停住六兄弟，與八戒相見畢，問：「齊天大聖何在？」八戒道：「現在山下聽呼喚。」二郎道：「兄弟們，快去請來。」那呆子急纵云头，上山拦住，厉声高叫道：「真君，且慢车驾，有齐天大圣请见哩。」那爷爷见说，即传令，就停住六兄弟，与八戒相见毕，问：「齐天大圣何在？」八戒道：「现在山下听呼唤。」二郎道：「兄弟们，快去请来。」
逐句解 Line by line
The idiot leapt hastily up on his cloud, went up the mountain and blocked the way, and called out in a sharp loud voice, "True Lord, hold your carriage a moment — the Great Sage Equal to Heaven asks to see you."
哩 stands at li by the corpus-wide ruling, where pypinyin gives a level-tone lī. 獃子 keeps the neutral zi. Eight Rules delivers the message nearly word for word as dictated, changing only 且略住住 to 且慢車駕 and 在此進拜 to 請見 — that is, dropping the obeisance.
His Lordship, hearing it, at once gave the word and halted the six brothers; and when he had exchanged greetings with Eight Rules, he asked, "Where is the Great Sage Equal to Heaven?"
爺爺 is set by the registered kinship reading, with a neutral second syllable — and the narrator applies it to Erlang, not any character, which is the text's own deference. 相 at 相見 is xiāng, the reciprocal. 傳令 is to pass down an order, the vocabulary of a commander.
Eight Rules said, "He is down at the foot of the mountain, waiting to be called."
No graph in this segment stands in any guard roster. It carries its own attribution and closes its own quotation, so it stands alone however short. 聽呼喚 — waiting on a summons — is the posture of a subordinate, and Eight Rules supplies it without being told to.
Erlang said, "Brothers, go quickly and bring him up."
No graph in this segment stands in any guard roster either, and it too carries its own attribution and closes its own quotation. 請 is to invite rather than to fetch, and Erlang's order to his brothers uses the courteous verb even though the man is waiting below to be summoned.
The protocol works, and it works because everybody performs their part exactly. Eight Rules blocks the road and shouts; the god halts his party; greetings are exchanged with the herald before any question is asked; and only then does he ask where the principal is.
The two small departures are both Eight Rules'. He changes 且略住住 — halt just a little — into 且慢車駕, hold your carriage, which is grander; and he drops 進拜, comes to pay his respects, in favour of 請見, asks to see you. The obeisance Pilgrim had carefully put into his own mouth does not survive the delivery.
He then puts it back in a different form. Asked where Pilgrim is, he says the Great Sage is at the foot of the mountain 聽呼喚, waiting on a call — which is a good deal humbler than anything Pilgrim actually said.