Yāska's Nirukta 20.6

20.6

"athāpi mitrāvaruṇayoḥ" ādityapravādāḥ stutayo bhavanti | tadyathā"ādityā dānunaspatī |" "dānapatī" | "tā sa̱mrājā̍ ghṛ̱tāsu̍tī ādi̱tyā dā̍nunaspatī | sace̍te anavahvaram ||” ( ṛ0 saṃ0 2, 8, 8, 1 )" | iyamṛk gāyatrī gṛtsamadena dṛṣṭā | abhiplavasya ṣaḍahasya dvitīye'hani praugaṃ nāma śastram' tatra "ayaṃ vāṃ mitrāvaruṇā sutaḥ somaḥ (ṛ0 saṃ0 2, 8, 7, 4 )"-ityeṣa tṛcaḥ śasyate, tasyottamā eṣā | 'tā samrājā' tau sandīptau 'ghṛtāsutī' tau hi ghṛta mudarkamāsuvāte, varṣakarmaṇā janayataḥ | 'ādityā' ādityau aditeḥ putrau 'dānunaspatī' dānānāmīśāte tau yajamānaiḥ samyak stutibhirhavirbhiśca saṃsevitau santau 'sacete' pratisaṃsevete yajamānamabhimatairdānaiḥ | 'anavahvaram' anavarudhyamānāvityarthaḥ | yajamānaviśeṣaṇaṃ vā yuktam | na kṛtaghnau, śaktau ca dātumityevaṃ mitrāvaruṇāvatra stūyete |
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