It is thought that clause gives Tottenham the option to match any future bids for Kane, who has made a good start to life in Germany and scored in Wednesday’s 4-3 Champions League win against Manchester United.
Levy has not disclosed exact details of the buy-back clause, but said: “If one day Harry wanted to come back to the Premier League, and he wants to come to Tottenham, we would have the ability to purchase him.”
But Bayern chief Freund has dismissed the prospect of Kane leaving and said the German champions want the striker to “shape an era” at the club.
Freund told DAZN: “We won't say anything about that [the buy-back clause]. We never reveal anything about contract details.
“Harry is here, has left England for the first time with conviction. We have a four-year contract with him. We are very, very happy and are planning long-term with him at Bayern.
“He will shape this team and an era here. I'm convinced of that. He feels very comfortable and has big goals with Bayern in the coming years.”