"The two sides stressed that they will continue working together to face the regional interventions and the attempts of division among regional states, and to unite as one bloc to confront the threats and challenges facing the region, particularly terrorism and its supporting states", Presidential Spokesman Bassam Rady said in a statement.
As a part of its initiative to protect Egypt's historic buildings, the Ministry of Antiquities has participated in restoring Al-Azhar Mosque and developing the area surrounding it, the restoration process started in February 2015 and is due to end on Monday.
In April 2017, King Salman Bin Abdul Aziz conferred with the Coptic pope at a Cairo hotel where the Saudi monarch was staying during an official visit to Egypt.
He will meet there head of the Coptic Church Tawadros II.
Saudi, Palestinian and American officials, however, have denied these reports.
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Hariri's brief resignation was seen as a politically orchastrated move by Saudi Arabia, with President Michel Aoun accusing the Kingdom of holding him against his well.
The crown prince has visited Egypt several times in recent years while serving as deputy crown prince.
Egypt is contributing $600 million to the $1.6 million project, while other funders include the Kuwait Fund for Arab Economic Development, the Arab Fund for Economic and Social Development and the Islamic Development Bank.
The visit "will be interpreted as proof of Saudi support for Sisi to remain as the president of Egypt", Mostafa Kamel al-Sayed, a political science professor at Cairo University, told AFP.
After his visit to Egypt, Bin Salman will head to the United Kingdom on 7 March and to the United States on 19 March.
Relations were briefly strained in late 2016 over differences related to the Syrian war.