Mahabharata 3.82.50
अथ वेतसिकां गत्वा पितामहनिषेविताम्अश्वमेधमवाप्नोति गच्छेच्चौशनसीं गतिम्
atha vetasikāṃ gatvā pitāmahaniṣevitāmaśvamedhamavāpnoti gaccheccauśanasīṃ gatim
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book