The former Manchester United midfielder is contracted to the end of the season.
Al-Khelaifi said in an interview with L'Equipe: "Recruiting David was one of my best decisions.
"As a man, player, ambassador, he is exceptional. It creates something in this group. Everyone loves it.
"We will talk with him. Whatever his decision, we support David.
"He is very happy in Paris. Frankly, we want to keep him with us next season."