References

BhPr, 2, 3, 94.3
  evaṃ saptapuṭair mṛtyuṃ lauhacūrṇamavāpnuyāt //Context
BhPr, 2, 3, 141.1
  śilājatu śreṣṭhamavāpya pātre prakṣipya tasmāddviguṇaṃ ca toyam /Context