Mukhtasar Bukhari

Sahih Sahl (may Allah be pleased with him) narrates from the Noble Prophet (peace and blessings of Allah be upon him) that he said: "In Paradise, there is a gate called 'Rayyan.' On the Day of Resurrection, only those who fast will enter through it; no one else will enter through that gate. It will be announced: 'Where are those who fasted?' Then they will stand up, and no one except them will enter through that gate. When they have entered, the gate will be closed, and no one else will enter through it."