Śatapatha Brāhmaṇa ("of a hundred paths") 7.3.1.12

7.3.1.12

athāhavanīya evāpyānavatībhyāmabhimṛśati | na gārhapatye 'yaṃ vai loko gārhapatyaḥ svargo loka āhavanīyo 'ddho vā ayamasmiṃloke jāto yajamānaḥ svarga eva loke prajijanayiṣitavyastadyadāhavanīya evāpyānavatībhyāmabhimṛśati na gārhapatye svarga evainaṃ talloke prajanayati

And only on the Âhavanîya he strokes it (even) with two (verses) containing (the verb) 'to grow,' not on the Gârhapatya; for the Gârhapatya is this (terrestrial) world, and the Âhavanîya is the heavenly world; and this Sacrificer, being indeed born in this world, is really intended to be born in the heavenly world: when he strokes (the sand) even on the Âhavanîya with two (verses) containing (the verb) 'to grow,' and not on the Gârhapatya, he causes him to be born in the heavenly world.