Yāska's Nirukta 122.12

122.12

“saprathāḥ ( 32 )”–ityanavagatam | “sarvataḥ pṛthuḥ”–ityavagamaḥ || “tvama̍gne su̱prathā̍ a̱si juṣṭo hotā̍ vare̍ṇyaḥ | tvayā̍ ya̱jñaṃ vita̍nvate || ( ṛ0 saṃ0 4, 1, 5, 4 )”–iti || sutambharaṃsyeyamārṣam | gāyatrī | āgneyī | prātaranuvākāśvinayoḥ śasyate || ‘he “agne” ! “tvam” tvameva “saprathāḥ” “sarvataḥ pṛthuḥ” vistīrṇaḥ | ‘juṣṭaḥ’ ca āsevito yajamānaiḥ | ‘hotā’ āhvātā devānāṃ bhavasi | ‘vareṇyaḥ’ varaṇīyaḥ sarvathāpi | kiṃ bahunā ‘tvayā’ eva hetubhūtenaite yajamānāḥ etaṃ ‘yajñaṃ’ ‘vitanvate’ vividhaṃ tanvate, vistārayanti | evamatra śabdasārūpyādarthopapatteśca “saprathāḥ-sarvataḥ pṛthuḥ”ityetadupapadyate |