Anti-President Mohammed Morsi protesters celebrate in Cairo's Tahrir Square after Morsi is toppled by a military coup Photo: Getty Images
"What is happening in Egypt is the fall of what is known as political Islam," Mr Assad said in an interview with Syrian state newspaper Ath-Thawra, excerpts of which were posted on the internet.
"Anywhere in the world, whoever uses religion for political aims, or to benefit some and not others, will fall.
"You can't fool all the people all the time, let alone the Egyptian people who have a civilisation that is thousands of years old, and who espouse clear, Arab nationalist thought."
Mr Assad said the Muslim Brotherhood's performance had helped the people see through "lies."
The full, pre-recorded interview is due to be published on Thursday by AFP.
There is long-standing animosity between the Damascus regime and the Muslim Brotherhood, and membership in the group has been punishable by death in Syria since the 1980s.
The Syrian branch of the Brotherhood today plays a key role in the exiled opposition National Coalition, which is recognised by more than 100 states and organisations as legitimate representative of the Syrian people.
Mr Morsi has expressed support for foreign intervention against Mr Assad and attended a rally two weeks ago calling for holy war in Syria.
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