YV 2.6n

Now the knot which he first ties, if he were not to unloose it, the Adhvaryu would perish from suppression of urine; therefore it must be unloosed. 'On the impulse of the god Savitr', (with these words) he takes up the spade, for impelling. 'With the arms of the Açvins he says, for the Açvins were the priests of the gods. 'With the hands of Pusan', be for restraint. Now the spade is as it were a bolt; 'Thou art the spade; thou art the, woman', he says, to appease it. Now, as each part is performed, the Raksases seek to injure the sacrifice; 'The Raksas is encompassed, the evil spirits are encompassed', he says, to smite away the Raksases [1]. 'Here do I cut off the neck of the Raksas, who hateth us, and whom we hate', he says; there are two people, he whom he hates and he who hates him; verily straightway he cuts their necks. 'To sky thee, to atmosphere thee, to earth thee!' he says; verily he anoints it for these worlds. He anoints from the top downwards; therefore [2] men live on strength from the top downwards. Now he does a cruel deed in that he digs; he pours down water, for atonement. He pours down (water) mixed with barley; barley is strength, the Udumbara is strength; verily he unites strength with strength. (The post) is of Udumbara wood of the height of the sacrificer. As great as is the sacrificer, so much strength does he put in it. 'Thou art the seat of the Pitrs', (with these words) he spreads the strew, for what is dug in has the Pitrs for its deity [3]. If he were to set it up without strewing, it would be dug in and have the Pitrs for its deity; he sets it up after strewing; verily he sets it up in this (earth), and makes it firm-rooted.' 'Support the sky, fill the atmosphere', he says, for the distinction of these worlds. 'May Dyutana Maruta set thee up', he says; Dyutana Maruta was wont to set up the Udumbara (post) of the gods; verily [4] by him he sets this (post) up.