Al Baqarah Ayah 154

وَلَا تَقُولُواْ لِمَن يُقْتَلُ فِى سَبِيلِ ٱللَّهِ أَمْوَٲتُۢ‌ۚ بَلْ أَحْيَآءٌ وَلَـٰكِن لَّا تَشْعُرُونَ ١٥٤ Never say that those martyred in the cause of Allah are dead—in fact, they are alive! But you do not perceive it.