Mbh 12.38.6a

"Vaisampayana continued, 'Thus addressed by Krishna, the high-souled king (Yudhishthira) of eyes like lotus petals, rose from his seat for the good of the whole world. The tiger among men, viz., Yudhishthira of great fame, besought by Krishna himself, by the Island-born (Vyasa), by Devasthana, by Jishnu, by these and many others, cast off his grief and anxiety. Fully conversant with the declarations of the Srutis, with the science that treats of the interpretation of those declarations, and with all that men usually hear and all that deserve to be heard, the son of Pandu obtained peace of mind and resolved upon that he should next do. Surrounded by all of them like the moon by the stars, the king, placing Dhritarashtra at the head of the train, set out for entering the city. Desirous of entering the city, Kunti's son Yudhishthira, conversant with every duty, offered worship unto the gods and thousands of Brahmanas. He then ascended a new and white car covered with blankets and deerskins, and unto which were yoked sixteen white bullocks possessed of auspicious marks, and which had been sanctified with Vedic mantras. Adored by panegyrists and bards, the king mounted upon that car like Soma riding upon his own ambrosial vehicle. His brother Bhima of terrible prowess took the reins. Arjuna held over his head a white umbrella of great effulgence. That white umbrella held upon the car looked beautiful like a star-decked white cloud in the firmament. The two heroic sons of Madri, viz., Nakula and Sahadeva, took up two yak-tails white as the rays of the moon and adorned with gems for fanning the king. The five brothers decked with ornaments, having ascended the car, O king, looked like the five elements (that enter into the composition of everybody). Riding upon another white car unto which were yoked steeds fleet as thought, Yuyutsu, O king, followed the eldest son of Pandu behind.