Mahabharata 3.289.20

3.289.20

tatastāmanavadyāṅgīṃ grāhayāmāsa vai dvijaḥ |
mantragrāmaṃ tadā rājannatharvaśirasi śrutam || 20 ||

Vaisampayana continued, "Thus addressed, that faultless maiden could-not, O king, from fear of a curse, refuse tor the second time compliance with the wishes of that best of the twice-born ones. Then, O king, that Brahmana imparted unto that girl of faultless limbs those mantras which are recited in the beginning of the Atharvan Veda. And, O king, having imparted unto her those mantras, he said unto Kuntibhoja. 'I have, O monarch, dwelt happily in thy house, always worshipped with due regard and gratified by thy daughter. I shall now depart.' And saying this, he vanished there and then. And beholding that Brahmana vanish there and then, the king was struck with amazement. And the monarch then treated his daughter Pritha with proper regard."