Salah, 22, joined Fiorentina on a six-month loan before the transfer deadline, acting as a makeweight in the £23.3 million deal which saw fellow wide man Juan Cuadrado head to Stamford Bridge.
After finding his first-team opportunities limited in north London, the Egypt international revealed at this official unveiling that he had asked to club to grant him a move, while adding that he had no intentions of returning to England.
"I spoke with the club and expressed my eagerness to embark on a new adventure in order to play with more continuity,” he said.
"I want to do well in Florence and win here. I'm not going to go back to Chelsea. I think I’m at Fiorentina [for the long-term].
"I'm young, I can improve in everything. I hope to do it here in Florence."
Fiorentina are reported to have the option to make Salah’s move permanent, per the Guardian, but Mourinho’s recent comments seem to suggest that the promising attacker could return in the summer.
“He’s a Chelsea player,” he said. “He’s on loan. He’s our player. When we sell the player they are not ours, but he’s on loan.”
Salah joined Chelsea from FC Basel last winter for around £11 million after helping inflict shock defeats on the Blues in the Champions League group stage with goals in each game, with the club beating Premier League rivals Liverpool to his signature.
He showed some clear moments of promise during his first few months at the club, but had made just eight appearances for a total of 337 minutes this season after finding himself stuck behind the likes of Willian, Eden Hazard and Oscar in the pecking order.