योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-211, verse-2

अद्यैतद्भवता प्रोक्तं मया मतिमतां वर ।
अनया सुदृशा शान्तमनाः स्वात्मा भविष्यसि ॥ २ ॥

adyaitadbhavatā proktaṃ mayā matimatāṃ vara ,
anayā sudṛśā śāntamanāḥ svātmā bhaviṣyasi 2

2. Thus I have related unto you this day, O most intelligent Rama, regarding the omnipresence of the Divine spirit; keep this vacuous view of Brahma before your sight, and proceed everywhere with the peace of your mind.