Bhagavad Gita · 5.19

इहैव तैर्जितः सर्गो येषां साम्ये स्थितं मनः।निर्दोषं हि समं ब्रह्म तस्माद्ब्रह्मणि ते स्थिताः॥

ihaiva tair jitaḥ sargo yeṣhāṁ sāmye sthitaṁ manaḥ nirdoṣhaṁ hi samaṁ brahma tasmād brahmaṇi te sthitāḥ

Even in this life, those whose minds are established in equanimity have conquered birth and death. Brahman is flawless and equal, and therefore they are established in Brahman.

— Bhagavad Gita 5.19

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)