Bhagavad Gita Chapter 8.5
anta-kāle ca mām eva
smaran muktvā kalevaram
yaḥ prayāti sa mad-bhāvaḿ
yāti nāsty atra saḿśayaḥ
Translation
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.