Ibn Jurayj narrates, through another chain, a report with the same meaning as the one mentioned above, except that at its end it says: When I gave the salam, I stood up; he did not mention the imam.
This report includes Jumu'ah and other prayers, just as his (peace and blessings be upon him) statement, "No voluntary prayer is to be joined to the obligatory prayer," includes both the imam and the follower. Imam al-Shafi'i (may Allah have mercy on him) mentioned it in the report transmitted by Imam al-Muzani (may Allah have mercy on him), and I have transmitted it from the athar of Sayyiduna Ibn Abbas (may Allah be pleased with them both). This statement of Imam al-Shafi'i (may Allah have mercy on him) is in the Kitab al-Jumu'ah of al-Mabsut.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3048