Sayyiduna Abu Hurayrah (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "In Paradise there is a gate called 'al-Duha'. When the Day of Resurrection comes, a caller will call out: Where are those who used to offer the Duha prayer regularly? This is your special gate; enter it by the mercy of Allah Almighty."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains Sulayman bin Dawud al-Yamami Abu Ahmad, and he is matruk (abandoned).