Khadiragrihyasutra 2.4.13

2.4.13

utsṛjyāpo devasya ta iti dakṣiṇottarābhyāṃ hastābhyāmañjaliṃ gṛhṇīyādācāryaḥ / 13

Having let the water run (out of his joined hands over the student's hands) the teacher should seize with his two hands, holding the right uppermost, (the student's) joined hands, with (the formula), By the impulse of the god Sâvitrî' (l.l. 18).