大乘玄論 5.12.5

5.12.5

答：雖復二人語俱盡，盡有所由，良由龍樹撿是非，故外人為失，外人言則盡。 外人之言既盡，龍樹之言亦盡。 二人言盡，功由龍樹，所以稱為龍樹論。 舉譬如兩人相費，雖復俱倒，而有勝負，下者為負、上者為勝。 龍樹外人亦復如此，雖復俱息言，龍樹為勝、外人為負，是故稱為龍樹論也。

Answer: Although the words of both men are equally exhausted, their exhaustion has a source. It is truly because Nāgārjuna examined right and wrong that the outsider incurred defeat, and the outsider's words were thus exhausted. The outsider's words having been exhausted, Nāgārjuna's words were also exhausted. The exhaustion of both men's words is due to Nāgārjuna; therefore it is called Nāgārjuna's treatise. To give an analogy: it is like two men wrestling. Although both fall down together, there is victory and defeat: the one underneath is the defeated, and the one on top is the victor. Nāgārjuna and the outsider are also like this: although both ceased speaking, Nāgārjuna is the victor and the outsider is the defeated; therefore it is called Nāgārjuna's treatise.