成唯識論演祕 2.23

2.23

亦如大乘十八界種，第六、八緣以境，對根合法處攝，從所生現十八界收，此亦相似。

It is just as in the Mahāyāna, where the seeds of the eighteen dhātus, when cognized by the sixth and eighth consciousnesses as objects corresponding to faculties, are subsumed under the dharmāyatana as compounded entities, yet are subsumed under the eighteen dhātus according to the actual [dhātus] they produce; this is also similar.