Bhagavad Gita 12.18 Chapter 12, Verse 18

समः शत्रौ च मित्रे च तथा मानापमानयोः ।
शीतोष्णसुखदुःखेषु समः सङ्गविवर्जितः ॥१२.१८॥

samaḥ śatrau ca mitre ca tathā mānāpamānayoḥ
śītoṣṇasukhaduḥkheṣu samaḥ saṅgavivarjitaḥ

Meaning

One who is the same to friend and foe, in honour and dishonour, in cold and heat, in pleasure and pain, and free from attachment,

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 12.18 (Chapter 12, The Yoga of Devotion (Bhakti Yoga), Verse 18)