Shiva Purana
आत्मतत्त्वानि सर्वाणि गृहीतानीति भावय ॥ पुनश्च सर्वग्रहणं विद्यातत्त्वशिवात्मनोः ॥ २५ ॥
Feel that you have grasped all the elements of the Self. Again the grasp of all is the essence of knowledge and the Self of Shiva.
english translation
AtmatattvAni sarvANi gRhItAnIti bhAvaya ॥ punazca sarvagrahaNaM vidyAtattvazivAtmanoH ॥ 25 ॥
hk transliteration by Sanscript