Rigveda 10.169.02

Those of fair form and of strange form and of single form — Agni knows their names. Which Agni of the hosts performed austerities? To them, to Pṛjanya, grant great protection as you please.

Grant great felicity, Parjanya, to those cows who are of similar forms, of different forms, or of singleforms, whose names Agni knows through the sacrifice, or those whom the Aṅgirasas created in this world bypenance.

Like-coloured, various-hued, or single-coloured, whose names through sacrifice are known to Agni, Whom the Angirases produced by Fervour,vouchsafe to these, Parjanya, great protection.