"a muslim would not respond to the death of a muslim, regardless of the circumstances, with such a question

when we visit the graves or even pass by the graves of the muslims, we wish them well, forgiveness of sins, and speedy entry into jannah

the kuffar, when we hear of their death, there are no words of sorrow or comfort, because their dead are in hell, when we pass by their graves, we remind them of the punishment of the hellfire

if a muslim has kafir relatives, they are not exempt from the punishments of the grave, nor the responses of the sunnah"