fasting is only for a certain number of days. one who is sick or on a journey has to fast the same number of days at another time. those who can afford a redemption should feed a poor person. good deeds performed on ones own initiative will be rewarded. however fasting is better and will be rewarded. would that you knew this!
أياما معدودات فمن كان منكم مريضا أو على سفر فعدة من أيام أخر وعلى الذين يطيقونه فدية طعام مسكين فمن تطوع خيرا فهو خير له وأن تصوموا خير لكم إن كنتم تعلمون