وَعَنْ سَهْلِ بْنِ سَعْدٍ
قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «فِي الْجَنَّةِ ثَمَانِيَةُ أَبْوَابٍ مِنْهَا: بَابٌ يُسَمَّى الرَّيَّانَ لَا يدْخلهُ إِلَّا الصائمون»
Sahl ibn Sad reported God’s messenger as saying, “In paradise there are eight gates among which is a gate called ar-Rayyan which only those who fast will enter.”
Mishkat al-Masabih 1868, Book 8, Fasting, Hadith 2. 1 min read