Mishkat al-Masabih 95

Muslim ibn Yasār reported that ʿUmar ibn al-Khaṭṭāb was asked about this verse: ‘When your Lord took from the backs of the children of Adam…’ ʿUmar replied: ‘I heard the Messenger of God being asked about it. He said: “God created Adam, then passed His right hand over his back and drew his descendants from him. He said, ‘I have created these for Paradise, and they will do the deeds of the people of Paradise.’ Then He passed His hand over his back and drew descendants from him, and said, ‘I have created these for the Fire, and they will do the deeds of the people of the Fire.’ A man asked, ‘Messenger of God, then what is the point of doing deeds?’ The Messenger of God replied: ‘When God creates a servant for Paradise, He puts him to work in the deeds of the people of Paradise until he dies doing one of their deeds, and then God admits him to Paradise. And when God creates a servant for the Fire, He puts him to work in the deeds of the people of the Fire until he dies doing one of their deeds, and then God admits him to the Fire.’” Malik, al-Tirmidhi, and Abu Dawud transmitted it.