RV 5.12.3
कया नो अग्न ऋतयन्न् ऋतेन भुवो नवेदा उचथस्य नव्यः । वेदा मे देव ऋतुपा ऋतूनां नाहम् पतिं सनितुर् अस्य रायः ॥
kayā no agna ṛtayann ṛtena bhuvo navedā ucathasya navyaḥ | vedā me deva ṛtupā ṛtūnāṃ nāham patiṃ sanitur asya rāyaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
How hast thou, follower of the Law eternal, become the knower of a new song, Agni? The God, the Guardian of the seasons, knows me: the Lord of him who won this wealth I know not.
Translated by Ralph T. H. Griffith (1896)