The Moroccan's winner against Birmingham on Saturday helped his team close within five points of leaders Chelsea but, despite the Premier League season being just eight games old, the 26-year-old feels there is little margin for error.
"I still believe we can do it," he said. "Especially when you see the way we are playing and the team we have.
"It does not all depend on us but almost every game has to be won. There is no place for any other mistake and then we'll see if we can go above Chelsea."