Through another chain as well, Sayyiduna Sahl (may Allah be pleased with him) narrates a similar hadith from the Prophet (peace and blessings be upon him).
It is narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, in Paradise there is a gate called al-Rayyan; those who fast will enter through it, and when they have entered, it will be closed."
It is also narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "For every gate of righteousness there is a gate among the gates of Paradise, and the gate of fasting is called 'al-Rayyan'."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5948