Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) said: "The soul of the believer comes out like sweat (easily), and the soul of the disbeliever flows out just as the soul of a donkey comes out. When the believer commits a sin, he is dealt with severely at the time of death so that it becomes an expiation for it; and when the disbeliever does a good deed, he is given ease at the time of death so that he is rewarded for it (in this world)."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 9979