The Prophet (s.a.w) said,

“No one has been a better companion to me than Abu Bakr”.

He (s.a.w), also said. “I called people to Islam. Everybody thought over it, at least for a while. But this was not the case with Abu Bakr. The moment I put Islam before him, he accepted it without any hesitation.” SubhanAllah.

Heres a story which I would like to share inshaAllah.

The messge of Islam made the people of Mecca very angry. The idols were their gods. The holy Prophet openly mocked at these gods. He declared they could do neither any good nore harm. Among the chiefs of Mecca was one Abu Jahl. He became the greatest enemy of the holy Prophet. He was always on the lookout to hurt him or even kill him, if he could. Abu Bakr kept an eye on this man, lest he should do a grave harm to Islam.
One day the holy Prophet was saying his prayers in the Kaaba. He was totally lost in the thoughts of Allah. Abu Jahl and some other chiefs of Mecca were sitting in the courtyard of the Kaaba. “I must finish with Muhammad today,” said Abu Jahl. So saying, he took a long piece of cloth. He put it around the holy Prophet’s neck. Then he twisted it hard. He was going to strangle the Messenger of Allah to death. The other chiefs looked on and laughed.
Abu Bakr happened to see this from a distance. He at once ran to the help of the Prophet. He pushed Abu Jahl aside and took off the cloth from around the holy Prophet’s neck. Thereupon Abu Jahl and other enemies of Islam came down upon Abu Bakr. They beat him very much. Indeed, the beating was so severe that Abu Bakr fell down senseless. He was carried home. He could not regain his senses till after several hours. And when he did come to himself, the first question he asked was, “Is the Prophet un-hurt?” Abu Bakr did not care for his own suffering. He was glad that he was able to save the Prophet’s life.

As Siddiq
In the tenth year of his mission, the holy Prophet (s.a.w) had the Miraj of Ascension. One night the angel Gabriel came with the word that Allah the Almighty wanted the holy Prophet to come all the way up to the highest heaven. The holy Prophet undertook the journey.
In the morning, after the ascension had taken place, the holy Prophet talked to people about the Miraj. This drew the jeers of his enemies.
“Look!” the howled out, “what nonsense he talks! Surely, now his followers too will laugh at him. Who is going to believe in such a midsummer night dream?”
The talk was going on when Abu Bakr came up. “Do you know, Abu Bakr, what news your friend has for you in the morning?” said one of the mean. “He says he was on the highest heaven last night, having a talk with Allah, the Almighty. Would you believe it?”
“I would believe anything that the Messenger of Allah says,” replied Abu Bakr
When the holy Prophet learnt of this, he at once said, “Abu Bakr is the `Siddiq’.” `Siddiq’ is a person so sincere of heart that doubts never mar his love. Abu Bakr earned this title because of his faith was too strong to be shaken by anything.