References

BhPr, 2, 3, 13.2
  vahniṃ kharataraṃ kuryād evaṃ dattvā puṭatrayam //Context
ŚdhSaṃh, 2, 11, 12.2
  vahniṃ kharataraṃ kuryādevaṃ dadyātpuṭatrayam //Context