YV 2.6j

It should be sloping east of the Ahavaniya and west of the Garhapatya. That is a place of sacrifice which is distinctly marked, be is distinguished from his evil foe, they doubt not of him for common meal or wedding. On a place of sacrifice which is artificial should he make him sacrifice who desires wealth. Man must be made; verily he prospers. The high altar taking the form of a lioness went away and remained between the two parties. The gods reflected, 'Whichever of the two she joins, they will become this.' They called to her; she said, 'Let me choose a boon; through me shall ye obtain all your desires, but the oblation shall come to me before (it comes to) the fire.' Therefore do they besprinkle the high altar before (they sprinkle) the fire, for that was its chosen boon. He measures (it) round with the yoke-pin [1], that is its measure; verily also by what is fitting he wins what is fitting. 'Thou art the abode of riches (vitta) for me', he says, for being found (vitta) she helped them; thou art the resort of the afflicted for me', he says, for she helped them in affliction; 'protect me when in want', he says, for she protected them when in want; 'protect me when afflicted', he says, for she protected them when afflicted. 'May Agni, named Nabhas, know (thee) [2], O Agni Angiras', (with these words) he thrice strokes with (the wooden sword); verily he wins the fires that are in these worlds. He strokes in silence for the fourth time, verily he wins that which is not indicated. 'Thou art a lioness; thou art a buffalo', he says, for it (the high altar) taking the form of a lioness went away and remained between the two parties. 'Extend wide; let the lord of the sacrifice extend wide for thee', he says; verily he enriches the sacrificer with offspring and cattle. 'Thou art firm' [3], (with these words) he strikes (the earth) together, for firmness.