References

RRÅ, V.kh., 13, 51.2
  niśāṭaṃkaṇamadhvājyānyebhistulyaṃ ca tutthakam //Context
RRÅ, V.kh., 4, 63.3
  tīkṣṇaṃ śulbaṃ nāgavaṅgau drutaṃ nāgaṃ tu tutthakam /Context
RRÅ, V.kh., 4, 131.1
  tīkṣṇaṃ śulbaṃ nāgavaṅgaṃ mṛtaṃ nāgaṃ tu tutthakam /Context