It is narrated from Sayyiduna Muawiyah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "My body has become heavy, so do not go into bowing (ruku‘) or prostration (sajdah) before me. No matter how much earlier I go into bowing than you, when I raise my head from bowing, you will find me. Similarly, no matter how much earlier I go into prostration, before I raise my head, you will find me (in prostration)."