大方廣佛華嚴經疏 27.21

27.21

第二「如是過去」下願成彼嚴。於中二：先嚴一界；後「如一世界」下例嚴普周顯嚴分齊，令法界土皆具三世一切莊嚴。既一佛土即具無盡莊嚴，則一嚴一切嚴，亦顯一圓滿即一切圓滿，重重無盡，方是華嚴淨土圓滿。

Second, from "thus in the past" below, vows to accomplish those adornments. Within this there are two: first, adorning a single world; later, from "just as in one world" below, by analogy it adorns universally, revealing the scope of the adornments, so that the lands of the dharmadhātu all possess all adornments of the three times. Since a single Buddha-land already possesses inexhaustible adornments, then one adornment is all adornments, and it also reveals that one perfection is all perfections—multiply inexhaustible, only this is the perfection of the Avataṃsaka pure land.