ABUBAKAR

with Furqan Abdulfattah Akeyede.  (Abu Alfarooq) 

They are the Khulaafahu Rashidun (Rightly Guided Khalifah)  whom the Prophet had ordered us to follow their Sunnah as stated in his Hadith:

Hadith of Al-'Irbad bin Sariyah:
.... Indeed, whomever among you lives, he will see much difference. Beware of the newly invented matters, for indeed they are astray. Whoever among you sees that, then he must stick to my Sunnah and the Sunnah of the rightly guided Khulafa', cling to it with the molars.'" Sahih
Jami` at-Tirmidhi 2676; Sunnan Abu Daud

*So who are the Rightly Guided Khulaafa?*

They are four in number and are" Abubakar, Umar, Uthman and Ali (May Allah be pleased with them all). They are the Successors who were the leaders of the Muslim community after the Prophet's demise. May Allah be please with them.

*ABUBAKAR AS SIDDIQ*

His real name is Abdullah ibn Uthman (Abi Quhafaah)
He believed in the Prophet (SAW) when everyone couldn't believe in him.
He is the Testifier to the truth (Siddeeq).
He was born two years after the birth of Prophet Muhammad (SAW).
He is also known as 'Atiq the one that has been freed from Hell-fire: As reported in the Hadith of the Prophet in the Musnad of Abu Ya'ala

 "If anyone wishes to see a person who has been freed from the fire of Jahannam then he should look at Abu Bakr." Sahih by Hakim

He was a very close friend and supporter of Prophet Muhammad (SAW) before he became a messenger and after he was called to Prophethood.

As mentioned in another Hadith in Sahihul Bukhari and Muslim " .....Abu Bakr has favoured me greatly with his companionship and his wealth. If I were to have taken a close friend among my ummah, I would have chosen Abu Bakr, but the brotherhood of Islam is sufficient..."
Narrated by al-Bukhaari, 466; Muslim, 2382

He Abubakar was known as Al-Saahib (the Companion): This was given by Allaah, The Mighty and Majestic to Abu Bakr in the Qur'an

, " If you help him (Muhammad) not (it does not matter), for Allah did indeed help him when the disbelievers drove him out, the second of two , when they both [Muhammad and Abu Bakr] were in the cave, and he said to his companion [Abu Bakr]: "Be not sad (or afraid), surely Allah is with us." Then Allah sent down His calmness upon him, and strengthened him with forces which you saw not, and made the word of those who disbelieved the lowermost, while it was the Word of Allah that became the uppermost, and Allah is All-Mighty, All-Wise ." (At-Tawbah 9:40).

 Ibn Hajar al-Asqalani said regarding this verse, "The intent by "his companion" is Abu Bakr without any dispute, and the ahadeeth about him being in the cave with him are many and well-known, and none besides him (Abu Bakr) shared with him in this virtue [al-Isabah Fi Tamyiz al-Sahabah 4/148].

He was the first Adult male to accept Islam from the Prophet (SAW). He believed in the Prophet, Support him and Call unto the Deenul Islam.

In'shaa Allah, we shall continue with the virtues of this great Companion. May Allah be  pleased with Abu Bakr and all the companions.
Wassalaam alaykum warahmatullah wabarakatuhu.