karmaṇy evādhikāras te
karmaṇy evādhikāras te mā phaleṣu kadācana |
mā karma-phala-hetur bhūr mā te saṅgo’stv akarmaṇi ||
(Śrīmad Bhagavad-gītā: 2.47)
“Your eligibility is only for karma, and never for [partaking of] the results. May you not be a cause of results of your karma [i.e., may you not perform karma out of desire for the results], and may you have no attachment to non-karma [i.e., non-performance of your karma, or, committing sin].”