Mahabharata 3.129.22

3.129.22

vedī prajāpatereṣā samantātpañcayojanā |
kurorvai yajñaśīlasya kṣetrametanmahātmanaḥ || 22 ||

'Lomasa said, 'It is even so, O thou of powerful arms! The saints of the highest order thus behold all the regions. Behold this holy Saraswati here, thronged by persons who look upon her as their sole refuge. O most praise worthy of men! having bathed here, thou wilt be free from all thy sins. O Kunti's son! here the celestial saints performed sacrificial rites of Saraswata king: and so did the saints and the royal saints. This is the altar of the lord of beings, five yojanas in extent on all sides round. And this is the field of the magnanimous Kurus, whose habit it was to perform sacrifices.'"