How many times can we mention the virtues of a single man before we recognize his status? How about when the best of creation, Allah’s Messenger bestows the honour of calling such a man his dear and intimate friend. Will we then accept the status of such a man?
Chapter 3: The saying of the Prophet “Close the gates (in the Mosque), except the gate of Abu Bakr.” 
Narrated Abu Sa’id al-Khudri, (raa) “Allah’s Messenger (saws) addressed the people saying, Allah gave a choice to one of (His) slaves to choose this world or what is with Him. The slave chose what is with Allah.”
Abu Bakr (raa) wept, and we were astonished at his weeping caused by what the Prophet (saws) mentioned as to a slave (of Allah) who had been offered a choice, (we learned later on) that Allah’s Messenger (saws) himself was the person who was given the choice, and that Abu Bakr (raa) knew more than us.
Allah’s Messenger (saws) added Abu Bakr (raa) has favoured me much with his company and property (wealth) more than anybody else. If I were to take a Khalil  other than my Lord, I would have taken Abu Bakr (raa), but the Islamic brotherhood and friendship is sufficient. Close all the gates in the mosque except the gate of Abu Bakr (raa).”
[See Vol. 1, Hadith No. 466]
- This is narrated by Ibn ‘Abbas (raa) on the authority of the Prophet (saws).
- Khalil: This word in Arabic means the one whose love is mixed with one’s soul, it is superior than a friend or a beloved. The Prophet (saws) had only one Khalil i.e., Allah but he had many friends.