Bhagwad Gita
Chapter 5, Verse 19
इहैव तैर्जितः सर्गो येषां साम्ये स्थितं मनः।
निर्दोषं हि समं ब्रह्म तस्माद्ब्रह्मणि ते स्थिताः।।5.19।।
Those whose minds are established in sameness and equanimity have already conquered the conditions of birth and death. They are flawless like Brahman, and thus they are already situated in Brahman.