Chelsea are keen to offload Salah and had reportedly agreed a £12.8million deal with the Florence club over a permanent transfer.
Salah, 23, excelled on loan at the Viola in the latter half of last season and has been offered over £2m a season to stay at the club permanently.
But his agent Ramy Abbas revealed today that the player rejected the offer and will instead seek a move to a rival Serie A side.
“We have decided not to stay in Fiorentina,” Abbas told Firenzeviola.it.
“Salah will shortly move on to another Italian club.”