Ramayana
अग्निहोत्रं व्रजत्वग्रे दीप्यमानं सह द्विजैः । वाजपेयातपत्रं च शोभमानं महापथे ॥ 7-109-2 ॥
"Let the blazing sacrificial fire go in front, together with the twice-born, and let the umbrella of the Vajapeya sacrifice, shining upon the great highway, go too."
english translation