理上不順 Not Clean in Point of Law
行者道:「我日間與那太子誇口,說我的手段比山還高,比海還深,拿那妖精如探囊取物一般,伸了手去就拿將轉來。卻也睡不著,想起來,有些難哩。」唐僧道:「你說難,便就不拿了罷。」行者道:「拿是還要拿,只是理上不順。」唐僧道:「這猴頭亂說。妖精奪了人君位,怎麼叫做理上不順?」行者道:「你老人家只知念經拜佛,打坐參禪,那曾見那蕭何的律法?行者道:「我日间与那太子夸口,说我的手段比山还高,比海还深,拿那妖精如探囊取物一般,伸了手去就拿将转来。却也睡不著,想起来,有些难哩。」唐僧道:「你说难,便就不拿了罢。」行者道:「拿是还要拿,只是理上不顺。」唐僧道:「这猴头乱说。妖精夺了人君位,怎么叫做理上不顺?」行者道:「你老人家只知念经拜佛,打坐参禅,那曾见那萧何的律法?
逐句解 Line by line
The Pilgrim said: 'By day I boasted to that prince, saying my powers were higher than the mountains and deeper than the seas, and that seizing this demon would be like taking a thing from a bag — I'd reach in my hand and pluck him right out.'
誇口: to boast. 探囊取物: 'to take a thing from a bag' — a proverb for effortless accomplishment. 拿將轉來: grab him and haul him back (將 = jiāng, directional). 那 (twice) = nà; 太子: 子 = zǐ; 還 (twice) = hái.
'But now I cannot sleep, for thinking it over, there is some difficulty in it.'
睡不著: cannot fall asleep (著 = zháo, so 不 = bù). 有些難: there is some difficulty (難 = nán).
The Tang Monk said: 'If you say it is hard, then just do not seize him, and let it be.'
便就不拿了罷: 'then just don't seize him, and be done' (罷 = ba, particle). Tripitaka's plain solution to Wukong's scruple.
The Pilgrim said: 'Seize him I still mean to; only the thing is not clean in point of law.'
理上不順: 'not smooth in principle/law' — the case cannot be cleanly prosecuted (還 = hái). This legalistic worry is Wukong's real concern.
The Tang Monk said: 'This monkey-head is talking nonsense.'
猴頭: 'monkey-head,' Tripitaka's affectionate-abusive epithet for Wukong. 亂說: to talk wildly.
'A demon has seized a sovereign's throne — how can you call that "not clean in point of law"?'
奪了人君位: usurped a sovereign's throne. Tripitaka's common-sense objection: the crime is plain, so where is the difficulty?
The Pilgrim said: 'You, sir, know only how to chant sutras and worship the Buddha, to sit in meditation and practice Chan — when did you ever look into the statutes of Xiao He?'
念經拜佛,打坐參禪: chanting scriptures and worshipping the Buddha, sitting in meditation and practicing Chan — 參 = cān (參禪); 佛 = fó. 那曾見: 'when did you ever see' — 那 = nǎ (interrogative). 那蕭何: 'that Xiao He' — 那 = nà (deictic). 蕭何 was the Han statesman famed for codifying the empire's laws.
Wukong's midnight worry is a delightfully unexpected one: not whether he can defeat the demon — of that he is serenely certain, having boasted it would be 'like taking a thing from a bag' — but whether he can prosecute the case. The Monkey King, so often pure force, here reveals a lawyer's caution: the seizure would be 'not clean in point of law' (理上不順).
Tripitaka's replies are the straight-man's. If it is hard, don't do it; and anyway, a demon on a stolen throne is manifestly a criminal — where is the difficulty? His common sense sets off Wukong's cleverness, and the comic asymmetry between the meditating monk and the scheming disciple drives the scene.
Wukong's retort — that the master knows sutras but not the statutes of Xiao He — invokes the great Han codifier of law as the emblem of due process, and states the passage's real subject: the difference between knowing a thing to be true and being able to prove it. The chapter's concern with distinguishing false from true here takes a juridical turn, anticipating Wukong's need to produce evidence — the king's body — before the demon can be brought down.