References

RArṇ, 12, 201.1
  oṃ namo rudrāya daṃṣṭrotkaṭāya vighnanāśāya diśāṃ rakṣa rakṣa vidiśāṃ rakṣa rakṣa rudro vijñāpayati huṃ phaṭ svāhā /Context
RCint, 7, 27.2
  vaiśyo vyādhiṣu sarveṣu sarpadaṃṣṭre ca śūdrakaḥ //Context