Agniveshyagrihyasutra 2.4.11.14

2.4.11.14

evaṃ dvādaśādityān yathākramaṃ vinyasya madhye sarvādityarūpaṃ vinyasyāthādbhirmārjayate āpo hi ṣṭhā mayo bhuva iti tisṛbhiḥ hiraṇyavarṇāḥ śucayaḥ pāvakā iti catasṛbhiḥ pavamānaḥ suvarjana ityetenānuvākena \

Having thus installed the twelve Ādityas in order, and having installed in the middle the one who has the form of all the Ādityas, he then purifies himself with water [reciting] the three [verses], "Waters, indeed, are refreshing...", the four [verses], "Golden of colour, pure, purifying...", and with this section, "The purifying one, the purifier...";