question #1 Sahih Muslim 927d, Book 11, Hadith 23 : What is the Islamic perspective on mourning and lamentation over the deceased?

When ‘Umar was wounded he fainted, and there was a loud lamentation over him. When he regained consciousness he said: Didn’t you know that the Messenger of Allah (ﷺ) said:” The dead is punished because of the weeping of the living”?