華嚴經內章門等雜孔目章 1.40

1.40

三云何明了生起不可得耶？謂若有定執識不俱生，與眼等識俱行一境，明了意識應不可得。所以者何？若時隨憶曾所受境，爾時意識不明了生。非於現境所生意識得有如是不明了相，是故應信諸識俱轉，或應許彼第六意識無明了性。

Third, how is it that "distinctly clear arising is unobtainable"? If one insists on holding that consciousnesses do not arise simultaneously, then when operating together with the eye consciousness and the others upon a single object, a distinctly clear mental consciousness could not be obtained. Why is this? When one subsequently recollects an object previously experienced, the mental consciousness arises indistinctly. It is not the case that the mental consciousness produced with respect to a presently appearing object has such an indistinct characteristic. Therefore, one should have faith that the various consciousnesses operate simultaneously; or else one must concede that the sixth mental consciousness lacks a distinctly clear nature.