Bhagavad Gita · 2.54

अर्जुन उवाचस्थितप्रज्ञस्य का भाषा समाधिस्थस्य केशव।स्थितधीः किं प्रभाषेत किमासीत व्रजेत किम्॥

arjuna uvācha sthita-prajñasya kā bhāṣhā samādhi-sthasya keśhava sthita-dhīḥ kiṁ prabhāṣheta kim āsīta vrajeta kim

Arjuna said: O Keshava, what are the characteristics of one who is steady in wisdom and established in samadhi? How does such a person speak, sit, and walk?

— Bhagavad Gita 2.54

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