Ibisevic was linked with a move to Manchester United in British newspapers on Sunday.
Hoffenheim has impressed in the Bundesliga this season and are currently at the top after 11 rounds.
Schindelmeister said: “There haven’t been any official enquiries from other clubs and even if there were, we wouldn’t react at all.
“The development of our team is so valuable that it is completely out of the question that we will be letting anyone go in the winter transfer period.
“I can’t even imagine that we will be talking about such things in six months’ time either.”
