成唯識論述記 4.846

4.846

述曰：以眼、耳、身根即三識種子。三識通二地，三根通五地，相望為難亦如前二。五十六云：幾唯欲界，幾唯欲繫、色界繫等文是。又五十六次下文，有上地無尋伺起眼識等難是。

The Commentary states: This is because the eye, ear, and body faculties are [claimed to be] identical to the seeds of the three consciousnesses. The three consciousnesses pervade two stages, while the three faculties pervade five stages; framing the objection by correlating them is also just as in the previous two. Fascicle 56 says: text such as 'how many are solely the desire realm, how many are bound to the desire and form realms,' and so forth. Furthermore, the text immediately following in Fascicle 56 contains the objection concerning arising eye-consciousness without vitarka and vicāra in higher stages, and so forth.