Mahabharata 1.31.10

कम्बलाश्वतरौ चापि नागः कालीयकस्तथावृत्तसंवर्तकौ नागौ द्वौ च पद्माविति श्रुतौ

kambalāśvatarau cāpi nāgaḥ kālīyakastathāvṛttasaṃvartakau nāgau dvau ca padmāviti śrutau

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