金剛般若波羅蜜經註解 1.289

1.289

一經始末皆稱如是，始云如是住、如是降心，中間節節云如是，至此又云如是觀，論乃釋云：「妙智正觀，故知妙智實一經之宗也。」正宗竟。

From beginning to end, this entire sūtra speaks of "thus": in the beginning it speaks of "abiding thus" and "thus subduing the mind"; in the middle section after section speaks of "thus"; and arriving here, it also speaks of "contemplating thus." The treatise explains: "Correct contemplation of wondrous wisdom; thus we know that wondrous wisdom is truly the central theme of the entire sūtra." The main teaching is concluded.