"After four years full of challenges and hard work, the time has come to move on. I leave with the feeling that I have fulfilled my mission. Four seasons, three championships. I will never forget the affection the fans have shown me since my very first days," Lewandowski said on social media.
"Catalonia is my place in the world. Thank you to everyone I have met over these four wonderful years. A special thanks to President Laporta for giving me the chance to experience the most incredible chapter of my career.
"Barça is back where it belongs. Visca el Barça (Long live Barça). Visca Catalunya (Long live Catalonia)."