《小部》第十二部經，屬阿毗達摩性質的分析論著，分三品講述阿羅漢如何獲得無礙解智，另有註釋書《正法顯揚》。

The twelfth book of the Khuddakanikāya, an Abhidhamma-style analytical treatise in three chapters on how an Arahant acquires discriminating knowledge, with a commentary called the Saddhammappakāsinī.