Bhagwad Gita
Chapter 8, Verse 21
अव्यक्तोऽक्षर इत्युक्तस्तमाहुः परमां गतिम्।
यं प्राप्य न निवर्तन्ते तद्धाम परमं मम।।8.21।।
That supreme abode is called unmanifested and infallible, and it is the supreme destination. When one goes there, he never comes back. That is My supreme abode.