Bhagwad Gita
Chapter 4, Verse 31
यज्ञशिष्टामृतभुजो यान्ति ब्रह्म सनातनम्।
नायं लोकोऽस्त्ययज्ञस्य कुतो़ऽन्यः कुरुसत्तम।।4.31।।
O best of the Kuru dynasty, without sacrifice one can never live happily on this planet or in this life: what then of the next?