Liverpool are not under pressure so there is no way for Saudi League clubs to speculate and Liverpool don't want to take the risk of letting Salah go without a replacement even though we know Salah role is very important in the team meaning we should ignore this rumour, we can talk about it again next season when Mo Salah contract only has one season left. Apart from that, if they wait for next season maybe the transfer fee will be cheaper than this season.
The transfer window in the Premier League will close today I don't know what time exactly what is clear is that there is no more time to prepare the transfer anymore.
Maybe it is time they look someplace else. For obvious reasons Liverpool still wants to hold on to Salah. His is one of the strong force in the squad, losing him to the Saudi's will affect the clubs performance. And whatever the Saudi's are bidding for him now may double in the next transfer window if they fail to get him now. On the other hand, Liverpool hanging on to their player doesn't mean they'll win the league. What if he gets an injury that puts him out of the entire season? Well, it is next summer for him.