Bhagavad-gītā 5.20
BG 5.20
Open the full passageन प्रहृष्येत्प्रियं प्राप्य नोद्विजेत्प्राप्य चाप्रियम् । स्थिरबुद्धिरसम्मूढो ब्रह्मविद् ब्रह्मणि स्थितः ॥२०॥
Sanskrit
na prahṛṣyet priyaṁ prāpya nodvijet prāpya cāpriyam sthira-buddhir asammūḍho brahma-vid brahmaṇi sthitaḥ
Translation
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.