快拿扇來 Bring Out The Fan
哪吒道：「既惜身命，快拿扇子出來。」牛王道：「扇子在我山妻處收著哩。」哪咤道：「既惜身命，快拿扇子出来。」牛王道：「扇子在我山妻处收着哩。」
逐句解 Line by line
Nezha said: "If you value your life, bring out the fan at once."
既惜身命 makes the surrender conditional on the very thing he has just begged for, which is the whole of the negotiation. Nezha does not ask for submission to the Buddha; that was offered unprompted. He asks for the fan.
The Bull King said: "The fan is with my mountain wife; she has it put away."
山妻, "mountain wife", is the humble form a man uses for his own wife, and the Bull King reaches for the polite word at the moment of surrendering her property. He does not have the fan himself: he handed it to her two passages ago, with her in tears, and never took it back. 收著 takes the zhe that keeps the keeping going, and 哩 holds at li.
既惜身命，快拿扇子出來 makes the surrender conditional on the thing he has just begged for. Nezha is not interested in the submission that was volunteered; he asks for the object, and the whole celestial establishment turns out to have been assembled to obtain a fan.
扇子在我山妻處收著哩 is the answer, and 山妻 is the humble form a man uses for his own wife. He reaches for the polite word at the moment of surrendering her property — and he does not have the fan himself: he handed it to her two passages ago, with her in tears, and never took it back.