Shiva Purana
ज्ञानामृतेन तृप्तस्य भक्त्या शैवशिवात्मनः ॥ नांतर्न च बहिः कृष्ण कृत्यमस्ति कदाचन ॥ ५१ ॥
O Kṛṣṇa, neither within nor without has he ever any duty, he who is contented with the nectar of knowledge and who has identified his Ātman with Śiva by means of his devotion.
english translation
jJAnAmRtena tRptasya bhaktyA zaivazivAtmanaH ॥ nAMtarna ca bahiH kRSNa kRtyamasti kadAcana ॥ 51 ॥
hk transliteration by Sanscript