كتب : Amro Hassan
The 36-year-old officially joined Ismaili on Monday after the coastal club agreed a fee of $600 for his services.
The former Ahli man told FilGoal.com that he was keen on playing for a club with a large fan base after he spent 18 months at Sion.
Despite winning the Swiss Cup last season, Sion struggled before they managed to avoid relegation to the second division.
In the meantime, Egypt goalkeeping coach Ahmed Soliman said that Al-Hadari's return to the Premier League will not help in the development of young guardians.
Ismaili's international keeper Mohamed Sobhi is set to be demoted to the bench because of Al-Hadari's presence at the club.
Alongside Al-Hadari and Zamalek's Abdul-Wahed Al-Sayed, Sobhi has been regularly called up to the Egypt fold since 2008.