In Nahjul Balagha ‘Ali (as) said that “ I used to go with...
In Nahjul Balagha ‘Ali (as) said that “ I used to go with the Holy Prophet like the baby camel goes with his mother.” Some historians try to show that when Muhammad (S) declared his prophet hood ‘Ali (as) was the first among male children who accepted Islam. The implication here is that both Muhammad (S) and ‘Ali (as) were non -believers before this declaration.
This is against the Qur'anic verdict which says that Ibrahim was a Muslim and he taught his children to be Muslims so that when the Prophet was born among the descendants of Ibrahim through the line of Ismael he was born a Muslim and so was ‘Ali. The correct thing to say would be that when Muhammad (S)declared his prophet hood openly ‘Ali (as) immediately adhered to the declaration without hesitation.
The three persons seen in prayers in the Kaaba were Muhammad, Khadija and ‘Ali before anyone else accepted Islam. For 3 years young and poor persons of Makka were accepting Islam secretly. The first open declaration came when the Qora'nic verse tells the Prophet to "come out openly and warn the people of your own clan." Invitations were sent to leaders of the Banu Hashim to come to the house of Muhammad (S)for Dinner.
Forty of them came, ate food and then heard Muhammad (S)about his mission of ‘ No god but Allah and Muhammad (S) as the messenger of Allah and whoever offers his help to propagate this religion will be his deputy and successor. No one stood up except ‘Ali (as) . After announcing this 3 times Muhammad (S) declared that ‘Ali (as) will be his deputy to his mission and will be his successor after him. People thought it as a joke that a 13 year old boy was to be a deputy of this prophetic mission.
Even Abu Lahab jokingly told Abu Talib, go and obey your son to which AbuTalib smilingly accepted. ‘Ali (as) promised to help Muhammad (S) in his mission and kept this promise all his life. The next thing which we see in the life of ‘Ali (as) is the reflection of this promise he gave at this place in front of the leaders of the Quraish. We see ‘Ali (as) protecting Muhammad (S) from the abuses of the enemies of Islam.
When Muhammad (S)went to Taif a nearby town to preach Islam children of Taif hurled stones and it was ‘Ali (as) who protected the Prophet and drove the stone throwing children away from the Prophet. As a youth ‘Ali (as) was strongly built, strong arms, wide chest and a very strong brave and shining face.