Surah Al-Baqarah (The Cow), Verse 154

وَلَا تَقُوْلُوْا لِمَنْ یُّقْتَلُ فِیْ سَبِیْلِ اللّٰهِ اَمْوَاتٌ بَلْ اَحْیَآءٌ وَّلٰكِنْ لَّا تَشْعُرُوْنَ ۟

Wa laa taqooloo limai yuqtalu fee sabeelil laahi amwaat; bal ahyaaa'unw wa laakil laa tash'uroon

“And say not of those who are slain in the way of Allah: "They are dead." Nay, they are living, though ye perceive (it) not.”

Quran 2:154 (Yusuf Ali Translation)