Agniveshyagrihyasutra 3.6.3.28

3.6.3.28

nāmagrāhaṃ trirudakamutsicyottīryācamyāthādityamupatiṣṭhate udvayaṃ tamasaspari iti \

Pronouncing his name, having tossed up water three times, having emerged, having sipped water, he then worships the sun, [reciting]: “Arising from darkness...”