question #3 Sahih al-Bukhari 3904, Book 63, Hadith 129 : What significance does the hadith place on the role of Abu Bakr in the early Muslim community?

Allah’s Messenger (ﷺ) sat on the pulpit and said, “Allah has given one of His Slaves the choice of receiving
the splendor and luxury of the worldly life whatever he likes or to accept the good (of the Hereafter)
which is with Allah. So he has chosen that good which is with Allah.” On that Abu Bakr wept and
said, “Our fathers and mothers be sacrificed for you.” We became astonished at this. The people said,
“Look at this old man! Allah’s Messenger (ﷺ) talks about a Slave of Allah to whom He has given the option
to choose either the splendor of this worldly life or the good which is with Him, while he says. ‘our
fathers and mothers be sacrifice(i for you.” But it was Allah’s Messenger (ﷺ) who had been given option,
and Abu Bakr knew it better than we. Allah’s Messenger (ﷺ) added, “No doubt, I am indebted to Abu Bakr
more than to anybody else regarding both his companionship and his wealth. And if I had to take a
Khalil from my followers, I would certainly have taken Abu Bakr, but the fraternity of Islam is.
sufficient. Let no door (i.e. Khoukha) of the Mosque remain open, except the door of Abu Bakr.”