Musnad Abu Ya'la al-Mawsili 117:210

Abdullah ibn Abd al-Samad narrated to us, my father Abd al-Samad ibn Ali narrated to us, from Awwam al-Basri, from Abd al-Wahid ibn Zayd, from Thabit, from Anas, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Verily, the day of Friday and the night of Friday consist of twenty-four hours. There is no hour among them except that Allah has in it six hundred [people] freed from the Fire." He said: Then we left his presence and entered upon al-Hasan, and we mentioned to him the hadith of Thabit. He said: "I heard it," and he added to it: "All of whom had deserved the Fire."