26. "The body of a universal monarch, Ananda, is first wrapped round with new linen, and then with teased cotton wool, and so it is done up to five hundred layers of linen and five hundred of cotton wool. When that is done, the body of the universal monarch is placed in an iron[48] oil vessel, which is enclosed in another iron vessel, a funeral pyre is built of all kinds of perfumed woods, and so the body of the universal monarch is burned; and at a crossroads a stupa is raised for the universal monarch. So it is done, Ananda, with the body of a universal monarch. And even, Ananda, as with the body of a universal monarch, so should it be done with the body of the Tathagata; and at a crossroads also a stupa should be raised for the Tathagata. And whosoever shall bring to that place garlands or incense or sandalpaste, or pay reverence, and whose mind becomes calm there — it will be to his well being and happiness for a long time.
27. "There are four persons, Ananda, who are worthy of a stupa. Who are those four? A Tathagata, an Arahant, a Fully Enlightened One is worthy of a stupa; so also is a Paccekabuddha,[49] and a disciple of a Tathagata, and a universal monarch.
28-31. "And why, Ananda, is a Tathagata, an Arahant, a Fully Enlightened One worthy of a stupa? Because, Ananda, at the thought: 'This is the stupa of that Blessed One, Arahant, Fully Enlightened One!' the hearts of many people will be calmed and made happy; and so calmed and with their minds established in faith therein, at the breaking up of the body, after death, they will be reborn in a realm of heavenly happiness. And so also at the thought: 'This is the stupa of that Paccekabuddha!' or 'This is the stupa of a disciple of that Tathagata, Arahant, Fully Enlightened One!' or 'This is the stupa of that righteous monarch who ruled according to Dhamma!' — the hearts of many people are calmed and made happy; and so calmed and with their minds established in faith therein, at the breaking up of the body, after death, they will be reborn in a realm of heavenly happiness. And it is because of this, Ananda, that these four persons are worthy of a stupa."
http://www.accesstoinsight.org/tipitaka ... .vaji.html