Mahabharata 6.20.16

साग्रं शतसहस्रं तु नागानां तव भारतनागे नागे रथशतं शतं चाश्वा रथे रथे

sāgraṃ śatasahasraṃ tu nāgānāṃ tava bhāratanāge nāge rathaśataṃ śataṃ cāśvā rathe rathe

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