YV 5.6f

The Aditya (cup) is cattle; he-draws after covering (the cup); verily he draws securing cattle for him. The Aditya (cup) is those cattle; Agni is Rudra here; he draws after covering; verily he shuts off cattle from Rudra [4]. (The stone) for pressing out the Upançu (cup) is this Aditya Vivasvant; it lies round this Soma drink until the third pressing. 'O bright Aditya, this is thy Soma drink', he says; verily he unites the Aditya Vivasvant with the Soma drink. 'With the rain of the sky I mix thee', (with these words) he should mix for one who desires rain; verily he wins rain. If it should fall quickly, Parjanya would be likely to rain; if long, (he would) not (be likely). He does not place (the cup) down, for from that which is not depressed offspring are produced. He should not utter the secondary Vasat; if he were to do so, he would let Rudra go after his offspring; after sacrificing he should not look after (it); if he were to look after (it) his eye would be likely to be destroyed; therefore he should not look after (it). He draws (the cup) for Savitr from the Agrayana with the Antaryama-vessel; the Agrayana is Prajapati; (verily it serves) for the begetting of offspring. He does not place (the cup) down, for from that which is not depressed offspring are produced. He does -not utter the secondary Vasat; if he were to do so, he would let Rudra go after his offspring. Savitr is among the gods he who is connected with the Gayatri; in that the Agrayana (is drawn), it is drawn in the world of the Gayatri; in that he draws (the cup) for Savitr from the Agrayana with the Antaryama vessel, verily he draws it off from its own birthplace. The All-gods [1] could not perform the third pressing; they led Savitr who shares in the first pressing to the third pressing; then indeed they performed the third pressing. In that (the cup) for Savitr is drawn at the third pressing, (it serves) for performing the third pressing.