金剛般若經依天親菩薩論贊略釋秦本義記卷上 1.109

1.109

經。佛說非身是名大身　第四釋也。佛說非身者。非有漏有為身也。是名大身者。是無漏無為身也。

[Sūtra:] "'The Buddha taught that no-body is named a large body.'"

This is the fourth [part], the explanation. "The Buddha taught that no-body" means it is not a conditioned body with taints. "Is named a large body" means it is an unconditioned body without taints.