Note 1 — Chapter XXIV · WHERE BUDDHA FINALLY RENOUNCED THE WORLD, AND WHERE HE DIED.
James Legge translation
This was on the night when Śâkyamuni finally left his palace and family to fulfil the course to which he felt that he was called. Chaṇḍaka, in Pâli Channa, was the prince’s charioteer, and in sympathy with him. So also was the white horse Kanthaka (Kanthakanam Aśvarâja), which neighed his delight till the devas heard him. See M. B., pp. 158–161, and Davids’ Manual, pp. 32, 33. According to ‘Buddhist Birth Stories,’ p. 87, the noble horse never returned to the city, but died of grief at being left by his master, to be reborn immediately in the Trayastriṃśas heaven as the deva Kanthaka!