Al Baqarah, 154 Ayah
2:154
وَلَا تَقُولُواْ لِمَن يُقۡتَلُ فِي سَبِيلِ ٱللَّهِ أَمۡوَٰتُۢۚ بَلۡ أَحۡيَآءٞ وَلَٰكِن لَّا تَشۡعُرُونَ ١٥٤
Wa Lā Taqūlū Liman Yuqtalu Fī Sabīli Al-Lahi 'Amwātun ۚ Bal 'Aĥyā'un Wa Lakin Lā Tash`urūna
And do not say about those who are killed in the way of Allah, "They are dead." Rather, they are alive, but you perceive [it] not.