It is narrated from Sayyiduna Suhayb (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When the people of Paradise have entered Paradise and the people of Hell have entered Hell, a caller will call out: O people of Paradise, you have a promise with Allah which He wishes to fulfil for you. They will say: What is it? Has He not made our scales heavy, made our faces bright, admitted us into Paradise and saved us from Hell? He said: Then the veil will be lifted and they will look at Allah. By the One in whose hand is my soul, they will not have been given anything dearer to them than looking at Allah."
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7283