He who joined word to Indra, who held eyes and mind—by branches of the Shami tree they performed the sacrifice.

They who created mentally for Indra the horses that are harnessed (carved) at his words, have partaken of the sacrifice performed with holy acts. (śamībhiḥ = ceremonies; i.e. they have pervaded, appropriated or accepted the sacrifice peformed with tongs, ladles, and utensils; an intimation of the mechanical skills of Ṛbhu).

They who for Indra, with their mind, formed horses harnessed by a word, Attained by works to sacrifice.