iii. 4. 10.

a O Vastospati, accept us;
Be of kind entrance for us and free from ill;
That which we seek from thee, do thou accord us,
And health be thou for our bipeds, health for our quadrupeds.
b O Vastospati, may we be comrades of thee
In a friendship, effectual, joyful, and proceeding well;
Aid our wishes in peace, in action;
Do ye guard us ever with blessings.

In that evening and morning he offers the Agnihotra the sacrificer thus piles up the oblation bricks [1]; the bricks of him who has established a sacred fire are the days and nights; in that he offers evening and morning, verily he obtains the days and nights, and making them into bricks piles them up. He offers ten in the same place; the Viraj has ten syllables; verily having obtained the Viraj, he makes it into a brick and piles it up; verily in the Viraj he obtains the sacrifice; the piling up must be repeated by him. Therefore that is the place of sacrifice where he advances having spent ten (nights); not suitable is the place where (he spends) less time than that [2] Now Vastospati is Rudra. If he were to go on without offering to Vastospati, the fire becoming Rudra would leap after him and slay him; he offers to Vastospati; verily with his own share he appeases him; the sacrificer does not come to ruin. If he were to offer with the chariot yoked, that would be as when one offers an oblation on a place he has left; if he were to offer without the chariot being yoked, that would be as when one offers an oblation at rest; verily no offering would be made to Vastospati [3]. The right (animal) is yoked, the left not yoked, and thus he offers to Vastospati; verily he does both, and appeases him completely. If he were to offer with one (verse) he would make (it) a ladle offering; having pronounced the Puronuvakya he offers with the Yajya, to win the gods. If he were to load (his cart) after the offering, he would make Rudra enter his house. If he were to set out without extinguishing the smouldering embers, it would be like a con fusion of the sacrifice or a burning. 'This is thy birthplace in season', (with these words) he places (the embers) on the kindling-sticks [4]; this is the birthplace of Agni; verily he mounts it on its own birthplace. Now they say, 'If being placed on the kindling-sticks it should be lost, his fire would be dispersed, it would have to be piled up again. 'With thy body, O Agni, worthy of sacrifice, come hither and mount', (with these words) he makes it mount on himself; the birthplace of fire is the sacrificer; verily on its own birthplace he causes it to mount.