وَما يَستَوِي الأَحياءُ وَلَا الأَمواتُ ۚ إِنَّ اللَّهَ يُسمِعُ مَن يَشاءُ ۖ وَما أَنتَ بِمُسمِعٍ مَن فِي القُبورِ

And not equal are the living and the dead. God makes whom He wills hear, and you can’t make those in the graves hear.