Mahabharata 12.29.44

परं सहस्राद्यो बद्ध्वा हयान्वेदीं विचित्य चसहस्रं यत्र पद्मानां कण्वाय भरतो ददौ

paraṃ sahasrādyo baddhvā hayānvedīṃ vicitya casahasraṃ yatra padmānāṃ kaṇvāya bharato dadau

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