Shiva Purana
प्रसादपूर्विका एव पशोस्सर्वत्र सिद्धयः ॥ स एव साधनैरन्ते सर्वैरपि च साध्यते ॥ ३१ ॥
The achievements of the individual are due to the grace of God. Lord alone is achieved in the end through all the means.
english translation
prasAdapUrvikA eva pazossarvatra siddhayaH ॥ sa eva sAdhanairante sarvairapi ca sAdhyate ॥ 31 ॥
hk transliteration by Sanscript