Ramayana 2.67.30

ध्वजो रथस्य प्रज्ञानं धूमो ज्ञानं विभावसोः।तेषां यो नो ध्वजो राजा स देवत्वमितो गतः।।2.66.30।।

dhvajo rathasya prajñānaṃ dhūmo jñānaṃ vibhāvasoḥ | teṣāṃ yo no dhvajo rājā sa devatvam ito gataḥ || 2.67.30 ||

A banner is the sign by which a chariot is recognized; smoke is the sign by which fire is known. So too, the king was the distinguishing emblem by which we were known—and that king has now departed from here to the world of the gods.