Amazon “incentive” affiliate?

So i am just wondering whether is this prohibited or not;
Can i offer affiliate links for amazon on my site, and give rewards($) to users if they buy the Amazon items through the referral link.

Example: Someone wants to buy a laptop for 1000$, but they buy it through my site through referral link, i get 5% commission and i give the buyer half(2.5%) in form of redeemeable vouchers or something like this.

Does anyone know if this is prohibited?