Sayyiduna Muawiyah (may Allah be pleased with him) narrates that I heard the Messenger of Allah (peace and blessings be upon him) say: "Indeed, my body has become heavy, so do not go into bowing (ruku) or prostration (sujud) before me. For however much I precede you in bowing, you will catch up with me after I raise my head, and however much I precede you in prostration, you will catch up with me after I raise my head." Imam Abu Bakr (may Allah have mercy on him) says that Janab Makhzumi did not mention these words in Yahya's narration: "however much I precede you in prostration." And in the narration of Janab Yahya bin Hakim, it is stated: "Indeed, I have become heavy-bodied, or I have become weak and aged."