Musannaf Ibn Abi Shayba 3:3371

Ubayd Allah ibn Musa narrated to us, he said: Israel informed us, from Abu Ishaq, from Amr ibn Abd Allah al-Asamm, that he went out with Masruq on the day of Eid. So I stood up to pray, and he took hold of my clothes and made me sit down. Then he said: "There is no prayer until the Imam prays."