2. Al-Baqara (The Cow)

Surah: 2   Aya: 184

184. Ayyaman maAAdoodatin faman kana minkum mareedan aw AAala safarin faAAiddatun min ayyamin okhara waAAala allatheena yuteeqoonahu fidyatun taAAamu miskeenin faman tatawwaAAa khayran fahuwa khayrun lahu waan tasoomoo khayrun lakum in kuntum taAAlamoona
  

  Translation

184. [Observing Saum (fasts)] for a fixed number of days, but if any of you is ill or on a journey, the same number (should be made up) from other days. And as for those who can fast with difficulty, (e.g. an old man, etc.), they have (a choice either to fast or) to feed a Miskîn (poor person) (for every day). But whoever does good of his own accord, it is better for him. And that you fast, it is better for you if only you know.