Devimahatmya or Saptashaticandi 44.83

Devīmāhātmya or Saptaśatīcaṇḍī 44.83

śatamādau śataṃ cānte japenmantraṃ navākṣaram
carāḍīṃ saptaśatīṃ madhye saṃpuṭoyamudāhṛtaḥ