成唯識論演祕 7.331

7.331

釋曰：第七地中尚有法執，意識執彼「上清淨」等、「勤思慕」等，故無生忍名之為「雜」。

Explanation: In the seventh ground, there is still clinging to dharmas; the mental consciousness clings to that 'superior purity', etc., and 'diligent desire', etc.; hence the forbearance of the non-arising of dharmas is designated as 'mixed'.