Chapter 6 · verse 16 · gita.yoga.org

Bhagavad Gita 6.16

नात्यश्नतस्तु योगोऽस्ति न चैकान्तमनश्नतः। न चातिस्वप्नशीलस्य जाग्रतो नैव चार्जुन

Verily, Yoga is not possible for him who eats too much, nor for him who does not eat at all, nor for him who sleeps too much, nor for him who is always awake, O Arjuna.