It's been suggested Guardiola is seeking a new centre-half signing for the winter market.
But the manager insists: “It's not up to me, but we can't buy anyone in January.
"We do not have the money to deposit large amounts. That didn't work in the summer, so not in the winter either.
“We will do it with the players that we have. With Taylor Harwood-Bellis, Eric Garcia and the new players in the youth academy. We have young talented players that we can count on."
He added: “Vinny (Kompany) had a great personality and he was very helpful to me and the entire club. But he has decided to go to Anderlecht and we must continue."