出三藏記集 5.18

5.18

昔慧叡法師久歎愚迷。製此喻疑防於今日。故存之錄末。雖於錄非類。顯證同矣。

Formerly, Master Huirui long sighed over such folly and delusion, and composed this "Clarifying Doubts" to guard against what has occurred today. Therefore it is preserved at the end of the catalogue. Although it is not of the same category as the catalogue, its clear proof is of the same import.