Verse
इति ते ज्ञानमाख्यातं गुह्याद्गुह्यतरं मया ।विमृश्यैतदशेषेण यथेच्छसि तथा कुरु ॥
iti te jñānamākhyātaṃ guhyādguhyataraṃ mayāvimṛśyaitadaśeṣeṇa yathecchasi tathā kuru
So have I expounded to thee a knowledge more secret than that which is hidden; having reflected on it fully, do as thou wouldest.
Gītā 18·63