2. Al-Baqara (The Cow)

Surah: 2   Aya: 235

235. Wala junaha AAalaykum feema AAarradtum bihi min khitbati alnnisa-i aw aknantum fee anfusikum AAalima Allahu annakum satathkuroonahunna walakin la tuwaAAidoohunna sirran illa an taqooloo qawlan maAAroofan wala taAAzimoo AAuqdata alnnikahi hatta yablugha alkitabu ajalahu waiAAlamoo anna Allaha yaAAlamu ma fee anfusikum faihtharoohu waiAAlamoo anna Allaha ghafoorun haleemun
  

  Translation

235. And there is no sin on you if you make a hint of betrothal or conceal it in yourself, Allâh knows that you will remember them, but do not make a promise of contract with them in secret except that you speak an honourable saying according to the Islâmic law (e.g. you can say to her, "If one finds a wife like you, he will be happy"). And do not consummate the marriage until the term prescribed is fulfilled. And know that Allâh knows what is in your minds, so fear Him. And know that Allâh is Oft-Forgiving, Most Forbearing.