References

RRÅ, R.kh., 9, 60.1
  oṃ amṛtena bhakṣyāya namaḥ anena manunā lauhaṃ bhakṣayet /Context
RRÅ, V.kh., 1, 65.1
  vāṅmāyāṃ heṃ tataḥ kṣmeṃ ca kṣmaśca pañcākṣaro manuḥ /Context