Sama Veda II.8.3.14: Agni, the bright face of the Dawns, is

1. Agni, the bright face of the Dawns, is shining: the singers' pious voices have ascended.
Borne on your chariot, Asvins, turn you hither, and come unto our brimming warm libation!

2. Most frequent guests, they scorn not what is ready: even now the lauded Asvins are beside us.
With promptest aid they come at morn and evening, the worshipper's most healthful guards from trouble.

3. Yea, come at milking-time, at early morning, at noon of day, and when the Sun is setting,
By day, at night, with most auspicious favour! Not only now the draught hath drawn the Asvins.