One verse

Bhagavad Gita 5.20

5.20

न प्रहृष्येत्प्रियं प्राप्य नोद्विजेत्प्राप्य चाप्रियम् | स्थिरबुद्धिरसम्मूढो ब्रह्मविद् ब्रह्मणि स्थितः ||५-२०||

na prahṛṣyetpriyaṃ prāpya nodvijetprāpya cāpriyam . sthirabuddhirasammūḍho brahmavid brahmaṇi sthitaḥ ||5-20||

na
never
prahṛṣyet
rejoices
priyam
the pleasant
prāpya
achieving
na
does not
udvijet
become agitated
prāpya
obtaining
ca
also
apriyam
the unpleasant
sthira-buddhiḥ
self-intelligent
asammūḍhaḥ
unbewildered
brahma-vit
one who knows the Supreme perfectly
brahmaṇi
in the transcendence
sthitaḥ
situated

A person who neither rejoices upon achieving something pleasant nor laments upon obtaining something unpleasant, who is self-intelligent, who is unbewildered, and who knows the science of God is already situated in transcendence.