On the heart of Abraham, there is the Iraqi Corner, and on the heart of Jesus, peace be upon him, there is the Yemeni Corner, and on the heart of Muhammad, may God bless him and grant him peace, there is the Black Stone Corner, and it is ours, praise be to God. Some of the pillars were in our time Al-Rabi’ ibn Mahmoud Al-Mardini Al-Hattab, and when he died, another person succeeded him, and he was Sheikh Abu Ali Al-Hawari was shown to him by God in his revelations before he knew them and verified their forms. He did not die until he saw three of them in the world of sense. He saw Rabi’ Al-Maridini, and he saw the other, who was a Persian man. He saw us and stayed with us until he died in the year five hundred and ninety-nine. He told me that and he told me: I did not see the fourth, who was a man. Ethiopian, and know that these pegs contain a great deal of knowledge, so what they must have knowledge of and by which they are pegs, and whatever is in excess of knowledge, some of them have fifteen knowledge, some of them have eighteen knowledge, some have twenty-one knowledge, and some have twenty-four knowledge. The types of science are many, and this number of types of science is necessary for each [Page 161 of the Cairo edition] of them, and one or all of them may collect or collect the knowledge of the group and more, but the specific