[4] He was born on the thirteenth of Rajab.

[4] He was born on the thirteenth of Rajab. [5] He was born on Monday, the third of Rajab. Some sources mentioned that he was born in Rajab but without mentioning the day. It has been mentioned in some du’as (supplications) that, “O Allah, I ask You by the ones born in Rajab, Muhammad bin Ali the second and Ali bin Muhammad al-Muntajab”. Some historians did not mention the month and the day of his birth but said he was born in Medina.

[6] His name His father Imam al-Jawad (a.s.) named him Ali like the blessed name of his two great grandfathers Ameerul Mo’minin Imam Ali (a.s.) and Imam Ali bin al-Husayn Zaynul Aabidin (a.s.). He resembled his grandfather Imam Ali (a.s.) in eloquence and [1] Aqiqa is the name of the sacrifice on the seven day after the birth of a child. [2] Usul al-Kafi, vol.1 p.497, al-Irshad, p.368, A’yan ash-Shia, vol.4 p.252.

[3] Al-Ittihaf bihubil Ashraf, p.67, Jawharat al-Kalam, p.151, Mir’at al-Janan, vol.2 p.159, Tareekh al-Khamees, vol.2 p.321. [4] A’yan ash-Shia, vol.4 p.252. [5] Tareekh al-Khamees, vol.2 p.321, Mir’at al-Janan, vol.2 p.159. [6] Al-Ittihaf Bihubil Ashraf, p.67. rhetoric and his grandfather Imam Zaynul Aabidin in piety, worshipping, and asceticism. His surname Giving a surname to a child was a kind of honoring which helped his personality grow well towards perfection.

The infallible imams (a.s.) noticed this important fact and therefore, they surnamed their children in their early childhood. The Arabs were proud of surname. Imam al-Jawad (a.s.) surnamed his son Imam al-Hadi (a.s.) as Abul Hasan which was the same as the surnames of his two grandfathers Imam Musa al-Kadhim (a.s.) and Imam ar-Redha (a.s.).

Narrators differentiated between these three imams in this surname by saying Abul Hasan the First (Imam Musa al-Kadhim), Abul Hasan the Second (Imam ar-Redha), and Abul Hasan the Third (Imam Ali al-Hadi). His epithets His epithets expressed the high qualities he had. His epithets are as follows: An-Nasih (loyal); he was called so because he was the sincerest advisor to the nation. Al-Mutawakkil (reliant on Allah); he disliked this epithet and ordered his companions not to call him with it.

I think he hated this epithet because it was the epithet of the Abbasid caliph Ja’far al-Mutawakkil who had bitter grudge, spite, and enmity towards the Ahlul Bayt (a.s.). At-Taqiy (pious, devout); he was called so because he feared Allah and turned to Him.