Mbh 14.70.1a

"Vaisampayana said, 'When the Brahma-weapon was withdrawn by Krishna, at that time, the laying-in room was illumined by thy father with his energy. All the Rakshasas (that had come there) were forced to leave the room and many of them met with destruction. In the welkin a voice was heard, saying, "Excellent, O Kesava, Excellent!"--The blazing Brahma-weapon then returned to the Grandsire (of all the worlds). Thy sire got back his life-breaths, O king. The child began to move according to his energy and might. The Bharata ladies became filled with joy. At the command of Govinda, the Brahmanas were made to utter benedictions. All the ladies, filled with joy, praised Janarddana. Indeed, the wives of those Bharata lions, viz., Kunti and Drupada's daughter and Subhadra, and Uttara, and the wives of other lions among men, like (ship-wrecked) persons who have reached the shore after having obtained a boat, became exceedingly glad. Then wrestlers and actors and astrologers and those who enquire after the slumbers (of princes), and bands of bards and eulogists all uttered the praises of Janarddana, while uttering benedictions fraught with the praises of the Kuru race, O chief of the Bharatas. Uttara, rising up at the proper time, with a delighted heart and bearing her child in her arms, reverentially saluted the delighter of the Yadus. Rejoicing greatly, Krishna made gifts unto the child of many valuable gems. The other chiefs of the Vrishni race, did the same. Then the puissant Janarddana, firmly adhering to truth, bestowed a name on the infant who was thy sire, O monarch.--"Since this child of Abhimanyu has been born at a time when this race has become nearly extinct, let his name be Parikshit!" Even this is what he said. Then thy father, O king, began to grow, and gladden all the people, O Bharata. When thy father was a month old, O hero, the Pandavas came back to their capital, bringing with them a profusion of wealth.