Amatul Rahmân Omer:
This day all good and pure things have been made lawful for you. And the food of those who have been given the Scripture is lawful for you (provided the food does not include anything forbidden in Islam), and your food is lawful for them. And (lawful for you for marriage are) the chaste women from among the believing women and chaste women from among those who have been given the Scripture before you, provided that you pay them their dowers (to live with them) after contracting valid marriage, not committing fornication, nor seeking secret love affairs by taking secret paramours. And whoever denies the commandments of (the true) faith, no doubt (he will find) his deeds have gone in vain and he will be of the losers in the Hereafter.
Surah Al Maidah (The Table Spread with Food) Ayat 5