The relevant segment of the poem reads:
With a little old driver so lively and quick,
I knew in a moment it must be St. Nick.
More rapid than eagles, his coursers they came,
And he whistled and shouted and called them by name:
Now Dasher! Now Dancer! Now, Prancer and Vixen!
On, Comet! On, Cupid! On, Donner and Blitzen!
To the top of the porch! To the top of the wall! and off and off we will fly!
Now dash away! Dash away! Dash away all!