References

BhPr, 2, 3, 46.2
  evaṃ rajatapatrāṇāṃ viśuddhiḥ samprajāyate //Context
BhPr, 2, 3, 56.2
  evaṃ tāmrasya patrāṇāṃ viśuddhiḥ samprajāyate //Context
BhPr, 2, 3, 91.2
  evaṃ lauhasya patrāṇāṃ viśuddhiḥ samprajāyate //Context
BhPr, 2, 3, 121.2
  evaṃ kāṃsyasya rīteśca viśuddhiḥ samprajāyate //Context