Musannaf Ibn Abi Shayba 3:2665

Hushaym narrated to us, he said: Yunus informed us, from al-Hasan, al-Mughirah, Ibrahim, and Abd al-Malik, from Ata’, that they said: If a man performs ghusl on the day of Jumu'ah after the rising of the dawn, it suffices him for the ghusl of Jumu'ah.