Bhagwad Gita
Chapter 4, Verse 30
अपरे नियताहाराः प्राणान्प्राणेषु जुह्वति।
सर्वेऽप्येते यज्ञविदो यज्ञक्षपितकल्मषाः।।4.30।।
All these performers who know the meaning of sacrifice become cleansed of sinful reaction, and, having tasted the nectar of the remnants of such sacrifice, they go to the supreme eternal atmosphere.