Shiva Purana
जपो नमश्शिवायेति मंत्रराजमिमं हरे ॥ सर्वकामप्रदं दिव्यं भुक्तिमुक्तिप्रदायकम् ॥ ८ ॥
O Kṛṣṇa, perform the Japa of this most efficacious mantra viz. “Om Namaḥ Śivāya.” It yields all desires. It is divine. It bestows worldly pleasures and salvation.”
english translation
japo namazzivAyeti maMtrarAjamimaM hare ॥ sarvakAmapradaM divyaM bhuktimuktipradAyakam ॥ 8 ॥
hk transliteration by Sanscript