Hazrat Sahl bin Sa’d Radi Allahu anhu narrated that the Beloved Messenger of Allah Salla Allahu ta’ala ‘alayhi wa Sallam said:
Verily there is a gate in Paradise which is called
‘al-Rayyan’. Those who fasted will enter it on the Day of Judgement, and none shall enter it except them. It will be said, ‘Where are those who fasted?’ They will come forward and none shall enter it except them. When they have entered, the gate will be closed and none shall enter it except them.
[Bukhari & Muslim]