Yāska's Nirukta 42.23

42.23

“tadāsāṃ karma” sa āsāmupamānānāmarthaḥ, yadaprasiddhataraguṇasya kasyacit prasiddhataraguṇenānyena guṇaprakāśanam || kacit punarātmanāpyupamānaṃ bhavatyeva | tadyathā-“vāyurātmopamagatiḥ” “tathā karoti sainyāni yathā kuryād dhanañjayaḥ” iti | “jyāyasā vā guṇena, prakhyātatamena vā kanīyāṃsaṃ vā'prakhyātaṃ vopamimīte” | jyāyasā vā utkṛṣṭena guṇena yo yasmin dravye utkṛṣṭo guṇaḥ tena, kanīyāṃsam anutkṛṣṭaguṇam upamimīte | tadyathā, - siho māṇavakaḥ | siṃhe śauryamutkṛṣṭam, anutkṛṣṭaṃ māṇavake, māṇavaka mṛtenopamimīte, siṃha iva māṇavako vikrānta iti | prakhyātatamena vā aprakhyātam upamimīte | prakhyātatamaścandramāḥ, aprakhyāto māṇavakaḥ, taṃ tenopamimīte- ‘candra iva kānto māṇavakaḥ’ iti |
“athāpi” kvacit “kanīyasā” guṇena “jyāyāṃsam” api santam upamimīte | tadetacchandasyeva draṣṭavyam