In an email sent to CNN, the Egyptian Football Federation said it was surprised that Salah was ready to "quit the national team" and that the 26-year-old hadn't informed them of that intention.
The controversy stems from a photo that surfaced before the tournament began of Salah locking hands with Chechen Republic leader Ramzan Kadyrov.
Subsequently Kadyrov made Salah an honorary citizen of the Chechen Republic. "That's right! Tonight I signed a decree to grant this high title to the great footballer of Egypt andLiverpool", Kadyrov wrote in a statement on the Vkontakte social media network.
Kadyrov, leader of Chechnya since 2004, is a controversial figure on the global stage because of his hard-line rule over his people and a series of contentious comments, particularly against the gay community. Despite efforts by the medical staff, the former Zamalek FC star passed away from a cardiac arrest, Ahmad Taha, the head of the hospital, told reporters.
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Fabianksi is the back-up to Wojciech Szczesny for Poland at the World Cup and didn't play in the team's first group game, a 2-1 loss to Senegal.
"Reports that Salah wants to leave are completely wrong", the Egypt FA said.
"Mo is still with us now and he is happy in the camp".
The Chechen controversy is the latest that Salah has experienced while on worldwide duty, with the forward winning a battle against the Egyptian FA in April over the use of his image rights.
Salah also scored in Egypt's 3-1 loss to Russian Federation in his first game back after injuring his left shoulder while playing for Liverpool in the Champions League final.
Egypt ended their World Cup campaign on Monday with a 2-1 loss to fellow Arab country Saudi Arabia, suffering defeats in all three games in their group in the tournament.