上界分辨 Sent Up To Heaven
菩薩無計奈何，即令諸天、木叉上前助力。眾神恐傷真的，亦不敢下手。菩薩叫聲「孫悟空」，兩個一齊答應。菩薩道：「你當年官拜弼馬溫，大鬧天宮時，神將皆認得你，你且上界去分辨回話。」這大聖謝恩，那行者也謝恩。菩萨无计奈何，即令诸天、木叉上前助力。众神恐伤真的，亦不敢下手。菩萨叫声「孙悟空」，两个一齐答应。菩萨道：「你当年官拜弼马温，大闹天宫时，神将皆认得你，你且上界去分辨回话。」这大圣谢恩，那行者也谢恩。
逐句解 Line by line
The Bodhisattva, at her wits' end, straightway ordered the devas and Mokṣa to go forward and lend their strength.
無計奈何 — out of stratagems, and what is to be done? It is the set phrase for an authority that has run through its measures.
But the host of spirits, fearing they might wound the true one, likewise dared not put out a hand.
The gods inherit Sha Monk's paralysis word for word: 恐傷真的, afraid of wounding the true one, and so 不敢下手, not daring to raise a hand. The scruple travels all the way up the hierarchy without anybody resolving it.
The Bodhisattva called out the name "Sun Wukong", and both of them answered together.
She calls a name — the one label in the world that ought to attach to exactly one being — and two voices answer. 答應 takes yìng, to answer; the automatic reading gives yīng, the "ought to" sense.
The Bodhisattva said: "In your day you held office as Ban-Horse Plague, and when you made your great uproar in Heaven the divine generals all knew you by sight. Go up to the upper realm and have the matter argued out there."
Her reasoning is good: there are beings up in Heaven who knew Wukong personally, in a particular job, at a particular time. 弼馬溫, Ban-Horse Plague, is the derisory stable post he was fobbed off with before he wrecked the place. 神將 takes jiàng, a general, against the jiāng of 打將來 a couple of passages back. 認得 takes dé, the reading for managing to do a thing.
This Great Sage gave thanks for the favour, and that Pilgrim gave thanks for the favour too.
Both thank her. Eleven characters, with the verb repeated word for word across the middle, and courtesy joins the long list of things that distinguish nobody.
The Bodhisattva's reason for sending them upstairs is the most promising idea yet, and it deserves credit. She reaches past appearance to biography: there are beings in Heaven who knew Wukong personally, in a specific job, at a specific date, long before any impostor existed. Shared history ought to be harder to fake than a face.
It is also, in plain terms, a referral upward by an authority that has run out of ideas — 無計奈何 says so outright. What began as a request to borrow the eye of wisdom has turned into a transfer of jurisdiction, and the chapter's architecture is now fully visible: the same case will be carried to Heaven, then to the underworld, then at last to the Buddha, and each court will fail in its own particular way.
The sharpest thing here is the smallest. 菩薩叫聲 — she calls out the name — and 兩個一齊答應, both answer together. A proper noun is supposed to pick out exactly one being in the world. Two voices answer it. The final sentence then does the same to gratitude: both thank her, in the same words, at the same moment.