Saudi Arabia, the United Arab Emirates, Bahrain and Egypt severed diplomatic and travel ties with Qatar in June, accusing it of supporting Islamist terrorists in the worst crisis among Arab states in years, a charge that Doha denies.
"Egypt will stand by its decision and will not backtrack on this matter," Sisi said at a youth conference in Alexandria. "Our persistence on its own, our stance, and this block, is pressure in itself."
Qatar's ruling emir Sheikh Tamim bin Hamad al-Thani said on Friday he was ready for dialogue, but any solution must respect Qatar's sovereignty. Kuwait has sought to mediate and the United States and Germany have urged dialogue.
The four Arab states want Qatar to reduce ties with their arch-foe Iran, close down a Turkish military base and shut the Al Jazeera TV channel, which they view as critical. Turkey and Qatar are backers of the Muslim Brotherhood movement that has challenged entrenched Arab rulers.
(Reporting by Ali Abdelatti; Writing by Patrick Markey; Editing by James Dalgleish)
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