One verse

Bhagavad Gita 18.49

18.49

असक्तबुद्धिः सर्वत्र जितात्मा विगतस्पृहः | नैष्कर्म्यसिद्धिं परमां संन्यासेनाधिगच्छति ||१८-४९||

asaktabuddhiḥ sarvatra jitātmā vigataspṛhaḥ . naiṣkarmyasiddhiṃ paramāṃ saṃnyāsenādhigacchati ||18-49||

asakta-buddhiḥ
having unattached intelligence
sarvatra
everywhere
jita-ātmā
having control of the mind
vigata-spṛhaḥ
without material desires
naiṣkarmya-siddhim
the perfection of nonreaction
paramām
supreme
sannyāsena
by the renounced order of life
adhigacchati
one attains

One who is self-controlled and unattached and who disregards all material enjoyments can obtain, by practice of renunciation, the highest perfect stage of freedom from reaction.