Someone told me ncis was going off after Season 10 becuase Mark Harmon wanted to quit. Is this true?

WHAT???!?!?!?!?!? HES LEAVING? But thats impossible Gibblet cant quit! Gosh who told anda that?
And i dont know if its true but im going to do some research into it.

HELL NO.haha I have no idea where anda heard that but he berkata that after episode 200 they were only halfway done.so don't worry