俱舍論記 16.140

16.140

「善言義者至名為能解」者，答。善言義者，耳識至現已生位中無迷亂緣故，即名為能解。又解：耳識非解，能生意識解，故名為能解。雖有兩解，意謂前勝。

"One who understands the meaning of words […] is called being able to understand": this is the reply. For one who understands the meaning of words, when the ear consciousness reaches the state of having already arisen, because there is no cause of confusion, it is called being able to understand. Another interpretation says: the ear consciousness itself does not understand, but it can generate the understanding of the mental consciousness, hence it is called being able to understand. Although there are two interpretations, the intention is that the former is superior.