因明入正理論疏 3.30

3.30

二因一喻，如同異性。此於前三一一皆有，亦如有性，是故為喻。仙人既陳三比量已，五頂便信。法既有傳，仙便入滅，勝論宗義由此悉行。陳那菩薩為因明之准的，作立破之權衡，重述彼宗，載申過難，故今先敘彼比量也。

The two reasons share one example: 'like commonality-particularity'. Since this exists in each of the three preceding categories individually, just as existence does, it is used as the example. Once the ṛṣi had presented the three inferences, Pañcaśikha came to believe. The dharma now having a successor to transmit it, the ṛṣi entered extinction, and the tenets of the Vaiśeṣika school were thereby spread completely. Bodhisattva Diṅnāga served as the standard for hetuvidyā and the balance for establishing and refuting; he recapitulated their school's tenets and set forth the faulty objections again; therefore, he first relates their inferences now.