VaitS, 1, 2, 1.2 nākasya pṛṣṭhe svarge loke yajamāno astu saptarṣīṇāṃ sukṛtāṃ yatra lokas tatremaṃ yajñaṃ yajamānaṃ ca dhehy oṃ bhūr bhuvaḥ svar janad o3ṃ praṇayeti yathāsvaram anujānāti /

VaitS, 2, 2, 1.6 tasya pade prathamaṃ jyotir ādadhe sa mā vahāti sukṛtāṃ yatra lokaḥ /