[i] This poem is included in Shinshūishū (XI: 1549), attributed to Okikaze, with the headnote, ‘From Former Emperor Uda’s Poetry Contest’. It is also included twice in Kokin rokujō (I: 31) and (VI: 4395): in both cases the poem is attributed to Okikaze, but the first instance lacks a headnote, while the second is classified as a ‘Warbler’ poem. Finally, it is also included in Mandaishū (II: 254), again attributed to Okikaze, but this time with the headnote, ‘Topic unknown’.
[ii] Given that the Left’s poem here is marked as winning, presumably Uda means that both poems are equally worthy of a win—that is, that this is a yoki ji, a ‘tie of quality’.