Musnad Ahmad 26:787

'Affan and Hasan ibn Musa narrated to us, they said: Hammad ibn Salamah narrated to us, he said: Hasan [narrated] from 'Ata', and 'Affan said: 'Ata' ibn al-Sa'ib narrated to us, from 'Amr ibn Maymun, from Ibn Mas'ud—Hasan said: Indeed, Ibn Mas'ud narrated to them—that the Messenger of Allah (peace and blessings of Allah be upon him) said: "There will be a people in the Fire for as long as Allah wills them to be, then Allah will have mercy upon them and bring them out of it. They will be at the lowest part of Paradise, and they will bathe in a river called: the River of Life (al-Hayawan). The people of Paradise will name them: the Hell-dwellers (al-Jahannamiyyun). If one of them were to host the people of the world, he would spread out bedding for them, feed them, give them drink, and clothe them—and I do not think he said anything other than: and marry them off." Hasan said: "That will not diminish anything from them."