The horses of the Kshatriyas being the portions of the thunder, it is said they are never to be killed. The portions of the chariots (the horses) are the offspring of Vadaba. Those amongst them that are Shuras.
क्षत्रवज्रस्य भागेन अवध्या वाजिनः स्मृताः। रथाङ्ग वडवा सूते शूराश्चाश्वेषु ये मताः॥