karmaṇy evādhikāras te
mā phaleṣu kadācana
mā karma-phala-hetur bhūr
mā te saṅgo ’stv akarmaṇi
karmaṇi — in prescribed duties; eva — certainly; adhikāraḥ — right; te — of you; mā — never; phaleṣu — in the fruits; kadācana — at any time; mā — never; karma-phala — in the result of the work; hetuḥ — cause; bhūḥ — become; mā — never; te — of you; saṅgaḥ — attachment; astu — there should be; akarmaṇi — in not doing prescribed duties.
You have a right to perform your prescribed duty, but you are not entitled to the fruits of action. Never consider yourself the cause of the results of your activities, and never be attached to not doing your duty.
. . .
कर्मण्येवाधिकारस्ते मा फलेषु कदाचन ।
मा कर्मफलहेतुर्भूर्मा ते सङ्गोऽस्त्वकर्मणि ॥ ४७ ॥