Śatapatha Brāhmaṇa ("of a hundred paths") 14.1.2.22

14.1.2.22

sa udvapati ṛjave tvetyasau vai loka ṛjuḥ satyaṃ hyṛjuḥ satyameṣa ya eṣa tavpatyeṣa u prathamaḥ pravargyastadetamevaitatprīṇāti tasmādāharjave tveti

He takes out (the first pot) with (Vâg. S. XXXVII, 10), 'For the righteous one (I take) thee,'--the righteous one, doubtless, is yonder world, for the righteous one means truth; and he that shines yonder is the truth, and the first Pravargya is that (god): it is him he thus gratifies, and therefore he says, 'For the righteous one (I take) thee.'