Bhagavad Gita 18.46

यत: प्रवृत्तिर्भूतानां येन सर्वमिदं ततम् ।
स्वकर्मणा तमभ्यर्च्य सिद्धिं विन्दति मानव: ॥

yata: pravṛttirbhūtānāṃ yena sarvam-idaṃ tatam
sva-karmaṇā tam-abhyarcya siddhiṃ vindati mānava: – 46

By devoutly offering one’s own action (and pursuit) to That (Source), from which all beings have emerged, and by which all this is pervaded, man attains perfection.