Shiva Purana
दशकोटिमितं मन्त्रं समावृत्य शशी च तम् ॥। ध्यात्वा मृत्युञ्जयं मन्त्रं तस्थौ निश्चलमानसः ॥ ४० ॥
The moon repeated the Mṛtyuñjaya mantra a hundred million times. He meditated on the lord Mṛtyuñjaya with his mind unruffled.
english translation
dazakoTimitaM mantraM samAvRtya zazI ca tam ॥। dhyAtvA mRtyuJjayaM mantraM tasthau nizcalamAnasaH ॥ 40 ॥
hk transliteration by Sanscript