Note 2 — Chapter XXIV · WHERE BUDDHA FINALLY RENOUNCED THE WORLD, AND WHERE HE DIED.
James Legge translation
Beal and Giles call this the ‘Ashes’ tope. I also would have preferred to call it so; but the Chinese character is 炭, not 灰. Rémusat has ‘la tour des charbons.’ It was over the place of Buddha’s cremation.