Hadith on Sawm: Special gate in Paradise for those who fast

Sahl ibn Sa’d reported: The Prophet, peace and blessings be upon him, said, “Verily, there is a gate in Paradise called al-Rayyan, through which only those who fasted will enter on the Day of Resurrection. No one else will enter it along with them. It will be said: Where are those who fasted? They will stand and no one will enter it along with them. When they enter it, it will be closed and no one else will go through it.”

Source: Ṣaḥīḥ al-Bukhārī 1896, Ṣaḥīḥ Muslim 1152

Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim

عَنْ سَهْلٍ رَضِيَ اللَّهُ عَنْهُ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِنَّ فِي الْجَنَّةِ بَابًا يُقَالُ لَهُ الرَّيَّانُ يَدْخُلُ مِنْهُ الصَّائِمُونَ يَوْمَ الْقِيَامَةِ لَا يَدْخُلُ مِنْهُ أَحَدٌ غَيْرُهُمْ يُقَالُ أَيْنَ الصَّائِمُونَ فَيَقُومُونَ لَا يَدْخُلُ مِنْهُ أَحَدٌ غَيْرُهُمْ فَإِذَا دَخَلُوا أُغْلِقَ فَلَمْ يَدْخُلْ مِنْهُ أَحَدٌ

1896 صحيح البخاري كتاب الصوم باب الريان للصائمين

1152 صحيح مسلم كتاب الصيام باب فضل الصيام