Egyptian sheikh Youssef El-Qaradawi said that the revolution is "a gift from God" in his Friday sermon from Al-Azhar Mosque on the second anniversary of the 25 January revolution.
El-Qaradawi, head of the International Union for Islamic Scholars, said that "whoever doubts that [the revolution] is God's gift, doubts certainty."
He also said that even though the revolution gave people the freedom to disagree and protest, people should not "abuse their rights."
He encouraged "discussion" as the "only tool" to move forward and called for stability, saying that many Arabs are ready to help Egypt with "billions" to revive its economy.
"Egypt was lost in the former regime; its finances were [stolen] and people could be arrested from their homes in the middle of the night and no one would know their place," he added.
El-Qaradawi, a veteran member of the Muslim Brotherhood, also spoke about how he himself was arrested at the hands of the former regime, including one occasion when he was detained for two weeks without his family's knowledge.
"This is how people lived before. We thank God that he gave us the revolution – this isn't a Muslim or a Christian or a 6 April revolution; this is a revolution of all Egyptians," he said.
At the end of the Friday prayers, many people started chanting "Islamic, Islamic" inside the mosque.
El-Qaradawi also spoke about Prophet Mohamed, whose birth is commemorated by Muslims in 2013 on 24 January, saying that God sent him as "mercy for all mankind."
He spoke about the prophet's character and life, calling on people to follow his example.
El-Qaradawi arrived in Cairo from Qatar on Wednesday to attend the anniversary of the 25 January revolution.