question #1 Sahih al-Bukhari 1367, Book 23, Hadith 119 : What is the significance of people’s testimony about a deceased person’s character in Islam?

A funeral procession passed and the people praised the deceased. The Prophet (ﷺ) said, “It has been
affirmed to him.” Then another funeral procession passed and the people spoke badly of the deceased.
The Prophet (ﷺ) said, “It has been affirmed to him”. `Umar bin Al-Khattab asked (Allah’s Messenger (ﷺ)
(p.b.u.h) ), “What has been affirmed?” He replied, “You praised this, so Paradise has been affirmed to
him; and you spoke badly of this, so Hell has been affirmed to him. You people are Allah’s witnesses
on earth.”