The Pali text attributes none of the verses to the Buddha. However, in the two Chinese parallels at SA 1286 and SA-2 284, one deity gives an opening verse; the Buddha responds with a series of 5 or 6 verses; then the deity concludes with a verse in praise. This gives a much more satisfying structure, and it seems likely the Pali text has suffered loss.

This sounds like a typical deity verse in that it culminates by going to heaven, but it is attributed to the Buddha in the Chinese parallels.

This verse sounds unlike something a deity would say, and like something the Buddha would say.

While the deity is said to recite several verses, the Pali text finishes here with a close -ti indicating the end of the quote.

The Pali text indicates no speaker for the final verses, but presumably they too were spoken by the Buddha.