Musannaf Ibn Abi Shaybah 38887 — The man marrying again after lian

It is reported from al-Zuhri: I heard Sayyiduna Anas bin Malik (may Allah be pleased with him) say: the Prophet (peace and blessings be upon him) fell from a horse and his right side was grazed. We went in to visit him in his illness, and during this the time of prayer came. He (peace and blessings be upon him) led us in prayer sitting, and we prayed behind him (peace and blessings be upon him) standing. When the prayer was finished, he (peace and blessings be upon him) said: "The imam is appointed only to be followed. So when the imam says the takbir, say the takbir; when he bows, bow; when the imam prostrates, prostrate; when the imam raises his head, raise your heads; and when the imam says 'Sami'a Allahu liman hamidah' (Allah hears the one who praises Him), say 'Allahumma rabbana wa lakal-hamd' (O Allah, our Lord, to You belongs all praise). And if the imam prays sitting, all of you pray sitting."