Salah has not been at his best as the Reds' challenge for several trophies ended in recent weeks.
While speaking on William Hill's Three Up Front podcast, Souness stated on Salah: I believe Mohamed Salah is off and leaving Liverpool.
He has been fabulous for Liverpool, but if he leaves to the Saudi Pro League then he'll be the biggest star in that part of the world.
He no doubt has an exceptionally large opinion of himself, and he'll have been angry at not starting the game against West Ham last week.
I think the situation with Jurgen Klopp was a reaction to only being brought on with 10 minutes to go it was more Salah than it was Klopp in that confrontation.
Salah is the most selfish player I have ever witnessed. Even prior to that game, whenever Klopp takes him off, he is never happy about it."