Yāska's Nirukta 319.14.1

319.14.1

sa yadyanurudhyate tadbhavati, yadi dharmo'nurudhyate taddevo bhavati, yadi jñānamanurudhyate tadamṛto bhavati, yadi kāmamanurudhyate saṃcyavata imāṃ yoniṃ sandadhyāt, tadidamatra mataṃ śleṣmā retasaḥ sambhavati, śleṣmaṇo rasaḥ, rasācchoṇitam, śoṇitānmāṃsam, māṃsānmedaḥ, medasaḥ snāvā, snāvno'sthīni, asthibhyo majjā, majjāto retaḥ, tadidaṃ yonau retaḥ siktaṃ puruṣaḥ sambhavati | śukrātireke pumān bhavati, śoṇitātireke strī bhavati, dvābhyāṃ samena napuṃsako bhavati, śukreṇa bhinnena yamo bhavati, śukraśoṇitasaṃyogānmātṛpitṛsaṃyogācca tat kathamidaṃ śarīraṃ paraṃ saṃyamyate, saumyo bhavatyekarātroṣitaṃ kalalaṃ bhavati, pañcarātrād budbudāḥ, saptarātrāt peśī, dvisaptarātrādarbudaḥ, pañcaviṃśatirātraḥ svasthito ghano bhavati, māsamātrātkaṭhino bhavati, dvimāsābhyantare śiraḥ sampadyate, māsatrayeṇa grīvāṭhyādeśaḥ, somaḥ pavate janayitā matīnāṃ janayitā divo janayitā pṛthivyā janayitāgnerjanayitā sūryasya janayitendrasya janayitota viṣṇoḥ somaḥ pavate somaḥ sūryaḥ prasavanājja-