Mahabharata 9.37.18

9.37.18

naimiṣe kāñcanākṣī tu munīnāṃ satrayājinām |
āgatā saritāṃ śreṣṭhā tatra bhārata pūjitā || 18 ||

During the continuance of that sacrifice at Pushkara and in the presence of the Grandsire, the Rishis, O king, said, 'This sacrifice cannot be said to possess high attributes, since that foremost of rivers, Sarasvati, is not to be seen here!' Hearing these words, the divine Brahman cheerfully thought of Sarasvati. Summoned at Pushkara by the Grandsire engaged in the performance of a sacrifice, Sarasvati, O king, appeared there, under the name of Suprava. Beholding Sarasvati quickly pay that regard to the Grandsire, the Munis esteemed that sacrifice highly. Even thus that foremost of rivers, the Sarasvati, made her appearance at Pushkara for the sake of the Grandsire and for gratifying the Munis. (At another time), O king, many Munis, mustering together at Naimisha, took up their residence there. Delightful disquisition occurred among them, O king, about the Vedas. There where those Munis, conversant with diverse scriptures, took up their abode, there they thought of the Sarasvati. Thus thought of, O monarch, by those Rishis performing a sacrifice, the highly blessed and sacred Sarasvati, for rendering assistance, O king, to those high-souled Munis assembled together, made her appearance at Naimisha and came to be called Kanchanakshi. That foremost of rivers, worshipped by all, thus came there, O Bharata! While (king) Gaya was engaged in the performance of a great sacrifice at Gaya, the foremost of rivers, Sarasvati, summoned at Gaya's sacrifice (made her appearance there).