Gobhilagrihyasutra 4.3.6

4.3.6

savyenai 'va pāṇino 'dapātraṃ gṛhītvā 'vasalavi pūrvasyāṃ karṣvāṃ darbheṣu ninayet pitur nāma gṛhītvā: 'sāv avanenikṣva, ye cā 'tra tvā 'nu yām̐ś ca tvam anu, tasmai te svadhe 'ti;

Seizing, again with his left hand, (the first) vessel, he should pour it out from right to left on the Darbha grass in the eastern pit, pronouncing his father's name, 'N.N.! Wash thyself, and (may) those who follow thee here, and those whom thou followest, (wash themselves). To thee Svadhâ!'