﴿ إِنَّكَ مَيِّتٌۭ وَإِنَّهُم مَّيِّتُونَ ﴾

“Yet, verily, thou art bound to die, [O Muhammad,] and, verily, they, too, are bound to die:”

You — an address to the Prophet s — will indeed die and they too will indeed die and so there is no satisfaction to be gained from another’s death this was revealed because they kept waiting for the Prophet s to die.