Bhagavad Gita · 18.52

विविक्तसेवी लघ्वाशी यतवाक्कायमानसः।ध्यानयोगपरो नित्यं वैराग्यं समुपाश्रितः॥

vivikta-sevī laghv-āśhī yata-vāk-kāya-mānasaḥ dhyāna-yoga-paro nityaṁ vairāgyaṁ samupāśhritaḥ

Dwelling in solitude, eating lightly, controlling speech, body, and mind, ever engaged in meditation and yoga, taking refuge in dispassion...

— Bhagavad Gita 18.52

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)