Shinagadori Inano no hara no shinomakura makura no shimo ya yadoru tsukikage

しなが鳥猪名野の原の篠枕
枕の霜や宿る月影

Roma-ji: Shinagadori Inano no hara no shinomakura makura no shimo ya yadoru tsukikage
English Translation: Bird of long breath,
on the plain of Inano
a pillow of bamboo grass—
is it the frost upon that pillow
or the lodging moonlight?
Meaning: On the plain of Inano, with bamboo grass for my pillow, is that frost upon the pillow, or the moonlight lodging there?
Commentary: Miscellaneous Poems 581

Headnote continued from the preceding poem: "Frost at a lodging on a journey"
Sleeping on the plain of Inano with bamboo grass for a pillow, the poet sees something white; is it frost on the pillow, or lodging moonlight? The conceit mistakes the whiteness of frost and of moonlight. Kamo no Mabuchi marked this poem with a sign of praise.
The Ruijū text places it in its travel section. The text transmitted by Teika reads line 3 as sasamakura.

Line 1, shinagadori, is a pillow word for Ina, the same as in 568 of this book.
Line 2 means "of the plain of Inano," a poetic place in Settsu.
Line 3 means "a pillow of bamboo grass."
Line 4 means "is it frost on the pillow?" repeating "pillow" from line 3, ya interrogative.
Line 5 means "the lodging moonlight," ending on a noun; it shares this last line with 566 of this book, turning moon in dew into moon in frost.
Author: Minamoto no Sanetomo
Source: Kinkaishu
Prev Poem: Sodemakura shimo oku toko no koke no ue ni akasu bakari no Sayo no Nakayama
Next Poem: Tabigoromo yowa no katashiki saesaete nonaka no io ni yuki furinikeri