At 9:54 of the second period in the Islanders/Panthers game, Florida requested a Coach's Challenge to review whether a New York player interfered with Florida goaltender Roberto Luongo prior to Nick Leddy's goal.
After reviewing all available replays and consulting with NHL Hockey Operations staff, the Referee confirmed no goaltender interference infractions occurred before the puck crossed the goal line.
Therefore the original call stands - good goal New York Islanders.
Since the Coach's Challenge did not result in the original call being overturned, the Florida Panthers forfeit their time-out.