References

RRÅ, R.kh., 5, 28.2
  vyāghrīkandagataṃ vajraṃ saptāhācchuddhim ṛcchati //Context
RRÅ, R.kh., 8, 33.1
  nāgena ṭaṅkaṇenaiva drāvitaṃ śuddhim ṛcchati /Context