Home tourney situation and question

[mpitts]

We were playing an 8-player $20 SNG at my house over the weekend when this situation presented itself.

The game is three handed.

The player on the button (seat 7) open-raises all-in preflop.

The small blind (seat 1) folds and mucks them across the table to the dealer.

The player in the big blind calls (he is covered by the raiser).

Everyone is dealing. The person on the button is dealing. When the small blind mucks his card to the dealer, one of the cards slides into the dealer's hand. The dealer does not notice this and, after he is called, inadvertently rolls over all three cards.

The small blind was able to fully identify his cards to the table, rank and suits. What should the ruling be?