Bhagavad Gita 8.21 Chapter 8, Verse 21

अव्यक्तोऽक्षर इत्युक्तस्तमाहुः परमां गतिम् ।
यं प्राप्य न निवर्तन्ते तद्धाम परमं मम ॥८.२१॥

avyakto'kṣara ityuktastamāhuḥ paramāṃ gatim
yaṃ prāpya na nivartante taddhāma paramaṃ mama

Meaning

That unmanifest is called the imperishable, and it is said to be the supreme goal. Those who reach it do not return — that is my supreme abode.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 8.21 (Chapter 8, The Yoga of the Imperishable Absolute, Verse 21)