As the son of Poseidon, Polyphemus prays to Poseidon and the god listens.

But at that he bellowed out to lord Poseidon,
thrusting his arms to the starry skies, and prayed, ‘Hear me —
Poseidon, god of the sea-blue mane who rocks the earth!
If I really am your son and you claim to be my father —
come, grant that Odysseus, raider of cities,
Laertes’ son who makes his home in Ithaca,
never reaches home. Or if he’s fated to see
his people once again and reach his well-built house
and his own native country, let him come home late
and come a broken man —all shipmates lost,
alone in a stranger’s ship —
and let him find a world of pain at home!’

So he prayed
and the god of the sea-blue mane, Poseidon, heard his prayer.

The Odyssey, Book 9, Translated by Robert Fagles.