Mahabharata 4.39.13
श्वेताः काञ्चनसंनाहा रथे युज्यन्ति मे हयाःसंग्रामे युध्यमानस्य तेनाहं श्वेतवाहनः
śvetāḥ kāñcanasaṃnāhā rathe yujyanti me hayāḥsaṃgrāme yudhyamānasya tenāhaṃ śvetavāhanaḥ
Our plain-language meaning of this verse is waiting for scholar review.