The Prophet ﷺ said, "The one who fasts has two joys, a joy when he breaks his fast and a joy when he meets his Lord."
وبهذا الإسناد أن النبي ﷺ قال للصائم فرحتان فرحة حين يفطر وفرحة حين يلقى ربه عز وجل
Its isnad is sahih, Bukhari reported it in 3/34, and Muslim in the Book of Fasting, 163.