Bhagavad Gita 18.57

चेतसा सर्वकर्माणि मयि संन्यस्य मत्परः।बुद्धियोगमुपाश्रित्य मच्चित्तः सततं भव ॥१८.५७॥

cetasā sarvakarmāṇi mayi saṃnyasya matparaḥbuddhiyogamupāśritya maccittaḥ satataṃ bhava

Mentally renouncing all actions in Me, having Me as the highest goal, and resorting to the yoga of discrimination, do thou ever fix thy mind on Me.

गीता