It wasnarrated from Sahl bin Sa'd that the Prophet (ﷺ) said:
"InParadise there is a gate called Rayyan. On the Day of Resurrectionthecall will go out saying: 'Where are those who used to fast?'Whoeveris among those who used to fast will enter it, and whoeverenters itwill never thirst again."
English reference: Vol. 1, Book 7, Hadith 1640
Arabic reference: Book 7, Hadith 1709