2. Al-Baqara (The Cow)

Surah: 2   Aya: 187

187. Ohilla lakum laylata alssiyami alrrafathu ila nisa-ikum hunna libasun lakum waantum libasun lahunna AAalima Allahu annakum kuntum takhtanoona anfusakum fataba AAalaykum waAAafa AAankum faal-ana bashiroohunna waibtaghoo ma kataba Allahu lakum wakuloo waishraboo hatta yatabayyana lakumu alkhaytu al-abyadu mina alkhayti al-aswadi mina alfajri thumma atimmoo alssiyama ila allayli wala tubashiroohunna waantum AAakifoona fee almasajidi tilka hudoodu Allahi fala taqrabooha kathalika yubayyinu Allahu ayatihi lilnnasi laAAallahum yattaqoona
  

  Translation

187. It is made lawful for you to have sexual relations with your wives on the night of As-Saum (the fasts). They are Lîbas [i.e. body cover, or screen, or Sakan, (i.e. you enjoy the pleasure of living with her - as in Verse 7:189) Tafsir At-Tabarî], for you and you are the same for them. Allâh knows that you used to deceive yourselves, so He turned to you (accepted your repentance) and forgave you. So now have sexual relations with them and seek that which Allâh has ordained for you (offspring), and eat and drink until the white thread (light) of dawn appears to you distinct from the black thread (darkness of night), then complete your Saum (fast) till the nightfall. And do not have sexual relations with them (your wives) while you are in I'tikâf (i.e. confining oneself in a mosque for prayers and invocations leaving the worldly activities) in the mosques. These are the limits (set) by Allâh, so approach them not. Thus does Allâh make clear His Ayât (proofs, evidences, lessons, signs, revelations, verses, laws, legal and illegal things, Allâh's set limits, orders, etc.) to mankind that they may become Al-Muttaqûn (the pious - see V.2:2).