Shiva Purana
शिवस्य मानसैश्वर्यं तदाऽयत्नं भविष्यति । सार्वज्ञाद्यं शिवैश्वर्यं लब्ध्वा स्वात्मनि राजते २२ ।
The mental prowess of Śiva becomes his without any difficulty. On acquiring the omniscience and prosperity of Śiva, the devotee becomes resplendent in his soul.
english translation
zivasya mAnasaizvaryaM tadA'yatnaM bhaviSyati । sArvajJAdyaM zivaizvaryaM labdhvA svAtmani rAjate 22 ।
hk transliteration by Sanscript