Human Rights Watch joins 50 other groups to call for release of Egyptian academic Salah Soltan, detained in Egypt.
Turkey and Egypt are close to restoring full diplomatic relations that could have implications on the entire region.
Al-Qaradawi, who died on Monday aged 96, was a leading voice in the Muslim world, in religion and in politics.
Sheikh Tamim’s visit comes less than two months after his government announced it would invest $5bn in Egypt.