Bhagavad Gita 6.7 Chapter 6, Verse 7

जितात्मनः प्रशान्तस्य परमात्मा समाहितः ।
शीतोष्णसुखदुःखेषु तथा मानापमानयोः ॥६.७॥

jitātmanaḥ praśāntasya paramātmā samāhitaḥ
śītoṣṇasukhaduḥkheṣu tathā mānāpamānayoḥ

Meaning

The self-mastered and serene person remains settled in the Supreme through cold and heat, pleasure and pain, honour and dishonour.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 6.7 (Chapter 6, The Yoga of Meditation (Atma Samyama Yoga), Verse 7)