注維摩詰經 9.276

9.276

肇曰：法身如空，非四大所起造也。生曰：向雖推無人相佛，正可表無實人佛耳，未足以明所以佛者竟無人佛也。若有人佛者，便應從四大起而有也。夫從四大起而有者，是生死人也。佛不然矣，於應為有，佛常無也。

[Seng]zhao says: The dharmakāya is like empty space, not something arisen or created from the four great elements. [Dao]sheng says: Although previously investigating the absence of a Buddha with human characteristics, it merely expresses that there is no real human Buddha, but is not yet sufficient to clarify why the Buddha ultimately has no human Buddha. If there were a human Buddha, he should exist by arising from the four great elements. That which exists by arising from the four great elements is a person of saṃsāra. The Buddha is not like this; existing for the sake of response, the Buddha is eternally non-existent [in terms of substantial being].