“The deceased was a truly great man, who took responsibility in the most difficult circumstances and the hardest times,” said President Sisi on Twitter.
During her meeting with the Grand Imam, the Queen had indicated that the world strongly relies on religious leaders to enhance world peace and stability.
Sheikh Khalifa bin Zayed died on Friday at the age of 73 after a long journey of illness. Egyptian President Abdel Fattah El Sisi mourned the death of Sheikh Khalifa.
The UAE Ministry of Presidential Affairs has mourned to the UAE people, Arab and Islamic nations and the world the death of President Sheikh Khalifa bin Zayed Al Nahyan.
The Cabinet mourned with deep sorrow the death of former housing minister Hasaballah el Kafrawy, who passed away earlier in the day.
President Sisi added that she was the best example for Egyptian women who sacrifice the most precious thing they have for the sake of their homeland.
President Abdel Fatah al-Sisi announced public mourning in Egypt for three days after Kuwaiti Emir Sabah Al-Ahmad Al-Sabah passed away Tuesday.
International leaders mourned President Hosni Mubarak, notably mentioning his role in October war and its aftermath, as well his maintaining peace with Israel.
Egypt has declared three days of national mourning starting from Wednesday after President Mohamed Hosni Mubarak passed away Tuesday at the age of 91.
Sisi on Thursday expressed his sincere condolences to the family of Essebsi.
The National Powers in the Gaza Strip held a mourning ritual on Sunday at the Unknown Soldier's Square, Gaza city.
The Jordanian flag was flown at half mast on Saturday on the death of dozens of Egyptian police personnel killed in an oasis in Western Desert on Friday.
Grief has camped over a small village in Minya, as it mourned the loss of seven of its sons who were killed in a dreadful terrorist attack Friday.