Verse 2.3.4.24

athāsīnaḥ | saṃ tvamagne sūryasya varcasā gathā iti tadyadastaṃ yannāditya āhavanīyam praviśati tenaitadāha samṛṣīṇāṃ stuteneti tadyadupatiṣṭhate tenaitadāha sam priyeṇadhāmnetyāhutayo vā asya priyaṃ dhāmāhutibhireva tadāha samahamāyuṣā saṃ varcasā sam prajayā saṃ rāyaspoṣeṇa gmiṣīyeti yathā tvametaiḥ samagathā evamahamāyuṣā varcasā prajayā rāyaspoṣeṇeti yadbhūmneti tadevamahametaiḥ saṃgacā ityevaitadāha

Preview of English translation:

24. Thereupon, while seated, (he mutters, Vajasaneyi Samhita III, 19 seq.), “Thou, O Agni, hast attained to Surya’s lustre—;” this he says, because, in setting, the sun enters the Ahavaniya; '—to the praise of the Rishis—;' this he says, because he himself now approaches (and worships, praises, the fire); '—to the favourite abode (or dainty);' his (Agni's) favourite abode doubtless are the offerings: “to offerings” he thereby says. “—May I attain to long life, to lustre, to offspring, to increase of wealth!” whereby he says, “Even as thou didst attain to those (qualities), so may I attain to long life, lustre, offspring, affluence,—that is to say, to prosperity.”

For a detailled translation, including proper diacritics and footnotes, go the full English translation.