Shiva Purana
प्रवृत्तिस्स्यात्तद्विदितात्तथैवाविदितात्परम् ॥ अन्यदेव हि संसिद्ध्यै न भवेदिति निश्चितम् ॥ १२ ॥
Instinct is from what is known and also from what is beyond the unknown. It is certain that no other god can be used for perfection.
english translation
pravRttissyAttadviditAttathaivAviditAtparam ॥ anyadeva hi saMsiddhyai na bhavediti nizcitam ॥ 12 ॥
hk transliteration by Sanscript