2. Al-Baqara (The Cow)

Surah: 2   Aya: 217

217. Yas-aloonaka AAani alshshahri alharami qitalin feehi qul qitalun feehi kabeerun wasaddun AAan sabeeli Allahi wakufrun bihi waalmasjidi alharami wa-ikhraju ahlihi minhu akbaru AAinda Allahi waalfitnatu akbaru mina alqatli wala yazaloona yuqatiloonakum hatta yaruddookum AAan deenikum ini istataAAoo waman yartadid minkum AAan deenihi fayamut wahuwa kafirun faola-ika habitat aAAmaluhum fee alddunya waal-akhirati waola-ika as-habu alnnari hum feeha khalidoona
  

  Translation

217. They ask you concerning fighting in the Sacred Months (i.e. 1st, 7th, 11th and 12th months of the Islâmic calendar). Say, "Fighting therein is a great (transgression) but a greater (transgression) with Allâh is to prevent mankind from following the Way of Allâh, to disbelieve in Him, to prevent access to Al-Masjid-al-Harâm (at Makkah), and to drive out its inhabitants, and Al-Fitnah is worse than killing. And they will never cease fighting you until they turn you back from your religion (Islâmic Monotheism) if they can. And whosoever of you turns back from his religion and dies as a disbeliever, then his deeds will be lost in this life and in the Hereafter, and they will be the dwellers of the Fire. They will abide therein forever."