"Kid is healthy!! Wife is healthy!!" says the posting. It did not give any other details, but a source tells PEOPLE the baby is a girl, born yesterday at Cedars-Sinai in Los Angeles.
Sandler, 39, and Jackie, 31, wed on June 22, 2003, at Dick Clark's oceanfront Malibu estate before 400 guests, including Jennifer Aniston, Dustin Hoffman, Rodney Dangerfield, Sharon Osbourne and Rob Schneider.
At the Jewish ceremony, Sandler wore a tux and yarmulke – as did his bulldog Meatball, who preceded Jackie down the aisle, bearing her wedding band on his back. (Jackie, whose maiden name is Titone, converted to Judaism in 2000.)