Bhagwad Gita
Chapter 4, Verse 23
गतसङ्गस्य मुक्तस्य ज्ञानावस्थितचेतसः।
यज्ञायाचरतः कर्म समग्रं प्रविलीयते।।4.23।।
The work of a man who is unattached to the modes of material nature and who is fully situated in transcendental knowledge merges entirely into transcendence.