anta-kale ca mam eva
smaran muktva kalevaram
yah prayati sa mad-bhavam
yati nasty atra samsayah
(Attaining the Supreme ,Text 5, Chapter 8)
Meaning: And whoever, at the end of his life, quits his body, remembering Me alone, at once attains My nature. Of this there is no doubt.
Bhagavad Gita: Attain my nature (Attaining the Supreme ,Text 5, Chapter 8)