أَيَّامٗا مَّعۡدُودَٰتٖۚ فَمَن كَانَ مِنكُم مَّرِيضًا أَوۡ عَلَىٰ سَفَرٖ فَعِدَّةٞ مِّنۡ أَيَّامٍ أُخَرَۚ وَعَلَى ٱلَّذِينَ يُطِيقُونَهُۥ فِدۡيَةٞ طَعَامُ مِسۡكِينٖۖ فَمَن تَطَوَّعَ خَيۡرٗا فَهُوَ خَيۡرٞ لَّهُۥۚ وَأَن تَصُومُواْ خَيۡرٞ لَّكُمۡ إِن كُنتُمۡ تَعۡلَمُونَ
Ayyaamam ma'doodaat; faman kaana minkum mareedan aw'alaa safarin fa'iddatum min ayyaamin ukhar; wa 'alal lazeena yuteeqoonahoo fidyatun ta'aamu miskeenin faman tatawwa'a khairan fahuwa khairulo lahoo wa an tasoomoo khairul lakum in kuntum ta'lamoon
English Translation
[Fasting for] a limited number of days. So whoever among you is ill or on a journey [during them] - then an equal number of days [are to be made up]. And upon those who are able [to fast, but with hardship] - a ransom [as substitute] of feeding a poor person [each day]. And whoever volunteers excess - it is better for him. But to fast is best for you, if you only knew
— Saheeh International