Shiva Purana
तथेह परिपूर्णस्य साध्यं मम न विद्यते ॥ तथैव कृतकृत्यानां तेषामपि न संशयः ॥ ३१ ॥
Just as I have nothing to be achieved since I am perfect, so also they have nothing to be attained because they are contented. It is undoubtedly so.
english translation
tatheha paripUrNasya sAdhyaM mama na vidyate ॥ tathaiva kRtakRtyAnAM teSAmapi na saMzayaH ॥ 31 ॥
hk transliteration by Sanscript