the fast is to be observed for a fixed number of days. if however anyone of you be sick or on a journey he should fast the same number of other days. as for those who can fast the expiation of this shall be the feeding of one needy person for one fast day and whoso does more than this with a willing heart does it for his own good. but if you understand the thing it is better for you to observe the fast.
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