Therefore...
Therefore, `Abbas ibn `Abd al-Muttalib says that he and Yazid ibn tannab and some persons of Banū-Hashim and Banū-al-`Uzza were sitting near the Ka`bah when Fatimah bint Asad came and stood near the Ka`bah for a while. Hardly any time elapsed when there appeared signs of concern on her face. She lifted her shaking hands towards the sky and prayed, “O my Sustainer! I have faith in You, Your Prophets and the Books Revealed to them.
Ease my difficulty for the sake of this very House, its Builder and the one who is in my womb! Make the birth of the child I am carrying easy for me! I am confident that he is one of the radiant signs of Your Greatness and Your Majesty!” `Abbas says that when Fatimah bint Asad finished the prayer, they saw the rear wall of the Ka`bah go asunder and she entered through that opening without any hesitation. Then immediately the opening closed and the wall was the same way as it was earlier.
The veracity of this narrative has been accepted by the scholars of both the schools of thought. Therefore, from among the erudite Shi`ah scholars, `Allamah Abū-Ja`far al-tūsi in al-Amali, `Allamah Majlisi in Bihar al-Anwar and from the scholars of Ahl al-Sunnah, Mir-Salih al-Kashshafi in al-Manaqib and Mawlawi Muhammad Mubin in Wasilat al-Najat have recorded this event. This tradition highlights the fact that this event did not happen all of a sudden as an accident.
The miracle is that the wall of the Ka`bah went asunder and Fatimah Bint Asad went boldly in and the wall came back to its original position. It was a manifestation of the Divine Power of Allah. Fatimah bint Asad emerged from the Ka`bah three days after the birth of `Ali (a.s) with the baby in her arms. The Prophet (a.s), who was waiting eagerly outside, went forward and took the son of his beloved uncle in his arms.
The baby opened his eyes and the first person on whose face he set his eyes was the Prophet (a.s). The Prophet (a.s) put his tongue in the mouth of the newborn and, they say, he transferred the Divine Prophetic Knowledge to him. Witnessing this event, the Prophet (a.s) has said, “He chose me for the first glimpse and I selected him for the knowledge.” `Ali (a.s) has several relationships with the Ka`bah.
The Prophet (a.s) has termed him ‘like the Ka`bah’, that his own forbears had constructed it and were the protectors and keepers of the edifice. Hassan ibn Kalal attempted to demolish it when Fihr ibn Malik defeated and imprisoned him.