Toguratate kaishi kari no ko sudachinaba mayumi no oka ni tobikaerikone

鳥座立て飼ひし雁の子巣立ちなば
真弓の岡に飛び帰り来ね

Roma-ji: Toguratate kaishi kari no ko sudachinaba mayumi no oka ni tobikaerikone
English Translation: You young wild geese
raised on a perch set up for you,
once you leave the nest,
come flying back again
to the hill of Mayumi.
Meaning: You goslings of the wild goose, raised on the perch that was set up for you—when you have left the nest, come flying back to Mayumi Hill.
Commentary: Book Two Elegies 182

Headnote continued from the preceding poem: "Twenty-three poems composed in grief by the attendants of the Prince's palace"
The speaker calls to the goslings the prince raised on a perch he set up for them: when they leave the nest, may they fly back to Mayumi Hill where he lies.
According to the headnote, these are twenty-three poems composed in grief by the attendants who served in Prince Kusakabe's palace. A left note, citing the Nihon shoki, records that the prince died in the fourth month of the third year of Empress Jitō's reign (689). The sequence takes up, scene by scene, the laments of the attendants: the garden and ponds of the Shima Palace bereft of their master, and the night watches they kept on the hills of Mayumi and Sada where the prince lay in state. This is the twelfth poem of the sequence.
The authors were the attendants who served in Prince Kusakabe's palace, and their individual names have not come down to us. Toneri were officials who served close to the Emperor and members of the imperial family as guards and aides. One theory holds that Kakinomoto no Hitomaro composed the poems in the attendants' voice, but this is not settled.

In the first line, "toguratate," togura is a roost or perch: having set up a perch.
The second line, "kaishi kari no ko," means "the young geese that were kept," those the prince had raised.
In the third line, "sudachinaba," na is the irrealis of the perfective nu and ba is conditional: once they have left the nest.
The fourth line, "mayumi no oka ni," means "to Mayumi Hill," where the prince's temporary shrine and tomb stood; it also appears in the fourth poem of the sequence, 174.
In the final line, "tobikaerikone," ne expresses a wish: please come flying back.
Source: Manyoshu
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