Mbh 3.126.2b

Then the king beheld the jar filled with water. And he quickly ran towards it, and having drunk the water, put the jar down. And as the water was cool, and as the king had been suffering greatly from thirst, the draught of water relieved the sagacious monarch and appeased his thirst. Then those saints together with him of ascetic wealth, awoke from sleep; and all of them observed that the water of the jar had gone. Thereupon they met together and began to enquire as to who might have done it. Then Yuvanaswa truthfully admitted that it was his act. Then the revered son of Bhrigu spoke unto him, saying. ‘It was not proper. This water had an occult virtue infused into it, and had been placed there with the object that a son might be born to thee. Having performed severe austerities, I infused the virtue of my religious acts in this water, that a son might be born to thee. O saintly king of mighty valour and physical strength! a son would have been born to thee of exceeding strength and valour, and strengthened by austerities, and who would have sent by his bravery even Indra to the abode of the god of death. It was in this manner, O king! that this water had been prepared by me. By drinking this water, O king, thou hast done what was not at all right. But it is impossible now for us to turn back the accident which hath happened. Surely what thou hast done must have been the fiat of Fate. Since thou, O great king, being a thirst hast drunk water prepared with sacred hymns, and filled with the virtue of my religious labours, thou must bring forth out of thy own body a son of the character described above. To that end we shall perform a sacrifice for thee, of wonderful effect so that, valorous as thou art, thou wilt bring forth a son equal to Indra. Nor with thou experience any trouble on account of the labour pains.’ Then when one hundred years had passed away, a son shining as the sun pierced the left side of the king endowed with a mighty soul, and came forth.