Bhagavad Gita 2.55

श्रीभगवानुवाच।

प्रजहाति यदा कामान् सर्वान् पार्थ मनोगतान् ।
आत्मन्येवात्मना तुष्ट: स्थितप्रज्ञस्तदोच्यते  ॥

śrī bhagavān-uvāca

prajahāti yadā kāmān sarvān pārtha manogatān
ātmany-evātmanā tuṣṭa: sthita-prajñas-tadocyate – 2.55

Lord Krishna said: When one relinquishes all desires engendered by the mind, and remains contented in his own within, he is said to be a Sthita-prajña, one with steady consciousness.