Musannaf Ibn Abi Shayba 3:2790

Waki’ narrated to us, from Sufyan, from Layth, from Mujahid; and from Sufyan, from Abu Ishaq, from al-Harith, from Ali; and from Sufyan, from Ibn Jurayj, from ‘Ata’: that they disliked prayer while the Imam is delivering the sermon on the day of Friday.