Amazon and hold?

Hi. I would like to know, is there a hold in Affiliate Amazon? I.e. if a user went to product page through my link and didn't buy the product right away, but he bought it after 2 days for example, will this buyer considered my buyer and will the money go to my account? Or does amazon pay only for purchases made right after the redirecting?

If the person didn't clear the cache, the sales should go to you.

Thanks. Is there any way to find out if a user bought the product at the 1st time when he visited the page, or the 2nd time?