2. Al-Baqara (The Cow)

Surah: 2   Aya: 221

221. Wala tankihoo almushrikati hatta yu/minna walaamatun mu/minatun khayrun min mushrikatin walaw aAAjabatkum wala tunkihoo almushrikeena hatta yu/minoo walaAAabdun mu/minun khayrun min mushrikin walaw aAAjabakum ola-ika yadAAoona ila alnnari waAllahu yadAAoo ila aljannati waalmaghfirati bi-ithnihi wayubayyinu ayatihi lilnnasi laAAallahum yatathakkaroona
  

  Translation

221. And do not marry Al-Mushrikât (idolatresses, etc.) till they believe (worship Allâh Alone). And indeed a slave woman who believes is better than a (free) Mushrikah (idolatress, etc.), even though she pleases you. And give not (your daughters) in marriage to Al-Mushrikûn till they believe (in Allâh Alone) and verily, a believing slave is better than a (free) Mushrik (idolater, etc.), even though he pleases you. Those (Al-Mushrikûn) invite you to the Fire, but Allâh invites (you) to Paradise and Forgiveness by His Leave, and makes His Ayât (proofs, evidences, verses, lessons, signs, revelations, etc.) clear to mankind that they may remember.