Mahabharata 9.37.19

गयस्य यजमानस्य गयेष्वेव महाक्रतुम्आहूता सरितां श्रेष्ठा गययज्ञे सरस्वती

gayasya yajamānasya gayeṣveva mahākratumāhūtā saritāṃ śreṣṭhā gayayajñe sarasvatī

Our plain-language meaning of this verse is waiting for scholar review.