عَنْ أَنَسِ بْنِ مَالِكٍ الْكَعْبِيِّ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم: «إِن اللَّهَ وَضَعَ عَنِ الْمُسَافِرِ شَطْرَ الصَّلَاةِ وَالصَّوْمَ عَنِ الْمُسَافِرِ وَعَنِ الْمُرْضِعِ وَالْحُبْلَى» . رَوَاهُ أَبُو دَاوُدَ وَالتِّرْمِذِيُّ وَالنَّسَائِيُّ وَابْنُ مَاجَهْ
Translation

Salama b. al-Muhabbiq reported God’s messenger as saying, “If anyone has a riding-beast which carries him to where he can get sufficient food he should observe the fast of Ramadan wherever he is when it comes.” Abu Dawud transmitted it.