Bhagavad-gītā 6.32
BG 6.32
Open the full passageआत्मौपम्येन सर्वत्र समं पश्यति योऽर्जुन । सुखं वा यदि वा दुःखं स योगी परमो मतः ॥३२॥
Sanskrit
ātmaupamyena sarvatra samaṁ paśyati yo 'rjuna sukhaṁ vā yadi vā duḥkhaṁ sa yogī paramo mataḥ
Translation
He is a perfect yogī who, by comparison to his own self, sees the true equality of all beings, in both their happiness and their distress, O Arjuna!