It is the great intensity in the time of Al -Mustansir Billah Al -Fatimi, where the flow of the Nile stopped for seven years, and the people of Egypt lived fierce famine; So they ate everything until the carcasses of the animals and then ate their dead, in the midst of that pandemic, the people of the path of the basil lived in Cairo, including the auspicious and holy meat, the most harsh conditions of life, clinging to patience with the affliction of death, hunger and epidemic until the cloud was revealed and the Ghaith came down and the river overflowed to restore life to Egypt.