شَهْرُ رَمَضَانَ الَّذِىْٓ اُنْزِلَ فِيْهِ الْقُرْاٰنُ هُدًى لِنَّاسِ وَ بَيِّنٰتٍ مِّنَ الْهُدٰى وَالْفُرْقَانِ فَمَنْ شَهِدَ مِنْكُمُ الشَّهْرَ فَلْيَصُمْهُ وَ مَنْ كَانَ مَرِيْضًا اَوْ عَلٰى سَفَرٍ فَعِدَّةٌ مِّنْ اَيَّامٍ اُخَرَ يُرِيْدُاللهَ بِكُمُ الْيُسْرَ وَ لَا يُرِيْدُ بِكُمُ الْعُسْرَ وَلِتُكْمِلُوا الْعِدَّةَ وَلِتُكَبِّرُوا اللهَ عَلٰى مَا هَدٰكُم وَلَعَلَّكُمْ تَشْكُرُوْن

The month of Ramadan, in which the Quran was sent - the guidance for mankind, the direction and the clear criteria (to judge between right and wrong); so whoever among you witnesses this month, must fast for the (whole) month; and whoever is sick or on a journey, may fast the same number in other days; Allah desires ease for you and does not desire hardship for you - so that you complete the count (of fasts), and glorify Allah’s greatness for having guided you, and so that you may be grateful.