Matsyapurana 49.13

49.13

bharasva putraṃ duṣyanta māvamaṃsthāḥ śakuntalām
retodhāṃ nayate putraḥ paretaṃ yamasādanāt
tvaṃ cāsya dhātā garbhasya satyamāha śakuntalā //

To the King Duṣyanta, an incorporeal Voice thus addressed :—"Mother is like a pair of bellows to the father, from whom the son is born. The son is thus identical with the father. Therefore, O Duṣyanta! foster your son and do not discard Śakuntalâ: The son raises his deceased father back from the hell of Yama to heaven. Thou art the generator of this child. What Śakuntalâ said is true.—12-13.