Bhagavad Gita: Chapter 18/Verse 26

मुक्तसङ्गोऽनहंवादी धृत्युत्साहसमन्वितः ।

सिद्ध्यसिद्ध्योर्निर्विकारः कर्ता सात्त्विक उच्यते ॥१८- २६॥

muktasaṅgo'nahaṃvādī dhṛtyutsāhasamanvitaḥ ।


siddhyasiddhyornirvikāraḥ kartā sāttvika ucyate ॥18- 26॥

The agent unperturbed in success and failure, free from the talk of the self accompanied by steadfastness and resolution, [and] freed from attachment is said to be sattvic. 


muktasaṅgas (mukta + saṅgas) (masculine, nominative, singular) =  freed from attachment 

anahaṃvādī (masculine, nominative, singular) = free from the talk of the self  

dhṛtyutsāhasamanvitas (dhṛti + utsāha + samanvitas) (past passive participle, masculine, nominative, singular) = accompanied by steadfastness and resolution  

siddhyasiddhyos (feminine, locative, dual) = in success and failure 

nirvikāras (masculine, nominative, singular) = unperturbed 

kartā (masculine, nominative, singular) = agent 

sāttvikas (masculine, nominative, singular) = sattvic 

ucyate (present tense, passive, 3rd person, singular) = it is said