法華義疏 3.187

3.187

「又告舍利弗，無漏不思議」，第四、釋唯佛能解章門。「無漏不思議」者，上明二乘無漏者，猶是《成實》、《毘曇》無漏，今總上二乘及菩薩皆名有漏，以有所得心未淨故；今無此諸漏，故云無漏。不思議者，心行斷故不可思，言語滅故不可議，以佛智慧不思議故，凡聖大小所不能解，則釋上義也。下半偈明唯總別二佛所能解也。

"He again told Śāriputra: The untainted and inconceivable": fourth, this explains the section heading on only Buddhas being able to understand. As for "the untainted and inconceivable," what was previously explained as the untainted of the two vehicles was still the untainted of the Tattvasiddhi and Abhidharma; here, the two vehicles and bodhisattvas above are collectively termed tainted, because their minds of apprehension are not yet purified. Now, being free from these taints, it is called untainted. "Inconceivable": because the mind's activity is cut off, it cannot be conceived; because verbal speech is extinguished, it cannot be deliberated. Because the Buddha's wisdom is inconceivable, it cannot be understood by ordinary beings, noble ones, the great, or the small; this then explains the meaning above. The lower half of the verse clarifies that only the general and specific two Buddhas are able to understand it.