The Poland international is expected to join Bayern in 12 months' time when his contract expires, but reports claimed the striker was keen to push through a deal this year.
Dortmund's recent signing of Pierre-Emerick Aubameyang from St Etienne prompted fresh speculation that Lewandowski could be sold in the current transfer window.
However, Dortmund have been adamant that the 24-year-old will not be sold and Lewandowski will spend the coming season with Jurgen Klopp's side.
"I have to accept that I am under contract with Borussia Dortmund and therefore I have to remain a player of the club," Lewandowski told BILD.
Dortmund's general manager Hans-Joachim Watzke has welcomed Lewandowski's comments regarding his short-term future.
"It's great to hear that," said Watzke. "Generally, we never had any doubts regarding the good character of Robert."
Bayern chairman Karl-Heinz Rummenigge stated last week that the Bundesliga champions would have been prepared to discuss a deal this summer, but understood Dortmund's stance.
Dortmund coach Jurgen Klopp also confirmed earlier this month that he fully expects Lewandowski to move to the Allianz Arena in 2014, but was focusing on how he can develop his team with the player this season.