Musannaf Ibn Abi Shaybah

Hazrat Umar bin Ata narrates that Hazrat Nafi’ bin Jubair sent me to Hazrat Sa’ib bin Ikht Namar so that I could ask him about what he had seen in the prayer of Hazrat Muawiyah. I asked him, and he said: I performed the Friday prayer with him in a room adjacent to the mosque. When the Imam finished the prayer with salam, I performed prayer standing in my place. When he (Muawiyah) came inside, he sent for me and said: Do not do again what you did today. When you have performed the Friday prayer, do not perform any prayer in that place until you have spoken or gone outside, because the Prophet (peace and blessings be upon him) commanded us that we should not join one prayer to another without speaking or leaving the place.