Quran 23, Al-Mu'minoon (The Believers)

23:101And when the trumpet is blown there will be no kinship among them that day, nor will they ask of one another.

فَإِذَا نُفِخَ فِي الصُّورِ فَلَا أَنْسَابَ بَيْنَهُمْ يَوْمَئِذٍ وَلَا يَتَسَاءَلُونَ