Imam Ali(as) is the only person born in the house of Ka'bah, whose split on the wall of the Ka'aba house reveals the miracle of his birth in the Ka'bah.He was the first man to believe in Prophet Muhammad (PBUH) and married the daughter of the Prophet (Hazrat Fatima(as)). His children are Imam Hassan(as) and Imam Hussein(as), the second and third Imams of Shiites. In the last Hajj journey, the Prophet(PBUH) introduced Imam Ali(as) as his successor to Muslims at a place called Ghadir Khum. Imam Ali(as) was a great man and adali that could not be said in a few words. The Prophet(PBUH) said: I am the city of knowledge and Al i is the gate of that city. Anyone who wants to enter a city must enter the gate of that city. To know the Prophet and Islam well, we must know Ali(as).
(Allah, send blessing on the Amir al-Momenin/Ali ibn Abi Talib/Brother of your prophet and his friend, his successor, his supporter/his vicegerent, custodian of his knowledge/repository of his confidential and privileged manners, gate of his wisdom/he gave tongue to his arguments/Inviting to his law, And the successor to the Prophet among his people/Removes sadness from his face/He defeats the infidels and it will kill the debauchee/whom than united with thy prophet as aaron was confederate with mosa/O Allah befriend those who make friends with him/discard those who show hostility to him/help those who support him/abandon those who forsake him/damn those who hated her، From the first person to the end/and send blessings on him/Send the best of your mercy that you sent to the children of the prophets so far/O the lord of the world)