Musannaf Ibn Abi Shayba 3:2929

Abu Usama narrated to us, from Mujalid, from Amir, from Jabir, who said: Sa'd said to a man on the day of Friday, "There is no prayer for you." The man mentioned that to the Prophet, may Allah bless him and grant him peace, and said, "O Messenger of Allah, Sa'd said, 'There is no prayer for you.'" The Prophet, may Allah bless him and grant him peace, said, "Why, O Sa'd?" He replied, "Because he spoke while you were delivering the sermon." He said, "Sa'd spoke the truth."