Sayyiduna al-Hakam bin Umayr (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) said: "Patience and hoping for reward from Allah are equal to freeing slaves, and Allah will admit the one who practises them into Paradise without reckoning."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3173