What does Master George tell Tom to rememver every time he sees the dollar George gave him?

From the text:

"Well, I won't, for your sake," said George, busily tying his dollar round Tom's neck; "but there, now, button your coat tight over it, and keep it, and remember,

every time you see it, that I'll come down after you, and bring you back. Aunt Chloe and I have been talking about it. I told her not to fear; I'll see to it, and I'll tease father's life out, if he don't do it."