classic waka stream

禊する川瀬にさ夜や更けぬらん
帰る袂に秋風ぞ吹く
Roma-ji

Misogi suru kawase ni sayo ya fukenuran kaeru tamoto ni akikaze zo fuku

English Translation
At the river shallows
where we purify ourselves,
has the night grown late?
Upon my sleeves as I return
the autumn wind is blowing
Meaning
Has the night grown late at the river shallows where we performed the purification? Upon my sleeves as I return, the autumn wind is blowing.
Commentary
Book Three Summer Poems 225

Headnote: "Composed on the Sixth Month Purification"
Composed on the topic of "the Sixth Month Purification." At the river shallows where the purification is performed, the night seems to have grown late without the poet noticing, and on the sleeves of those returning from the rite the autumn wind is already blowing. Sensing through the autumn wind on his sleeves that the night of the last day of Minazuki has deepened and the date has turned to autumn, the poem brings the book of summer to its close.
The author is unknown, and the poem is included as anonymous.
This book opens with poem 136, on sleeves changed from spring robes to summer ones, and ends with this poem, on sleeves touched by the autumn wind, so that the beginning and end of summer answer each other through the change of season felt in one's sleeves.

First line, "misogi suru": "where we perform the purification." Following 223 and 224 of this book, it again speaks of the purification.
Second line, "kawase ni sayo ya": in "sayo" the "sa" is a prefix, meaning night. The interrogative "ya" links with "ran" in the third line.
Third line, "fukenuran": "nu" is perfective and "ran" the attributive of present conjecture: "has it grown late?" The poem pauses here.
Fourth line, "kaeru tamoto ni": "on my sleeves as I return" from the rite. It answers "hana no tamoto ni" in the book's opening poem, 136, so that the book of summer, begun with sleeves, closes with sleeves.
Fifth line, "akikaze zo fuku": "zo" closes with the attributive "fuku," marking the end of summer and the coming of autumn with the autumn wind. Taking up the autumn winds of 207 and 220 of this book, the autumn wind blows at the very end of the summer book.
Author
Unknown Poet
Source
Senzai Wakashu
Prev Poem
Itsu tote mo oshiku ya wa aranu toshitsuki o misogi ni sutsuru natsu no kure kana
Next Poem
Aki kinu to kikitsuru kara ni waga yado no ogi no hakaze no fukikawaruran