Hadith 2230
Sayyiduna Muawiyah (may Allah be pleased with him) stated this on the pulpit. The Noble Prophet (peace and blessings be upon him) said: "Do not try to go into bowing (ruku) or prostration (sajdah) before me, because my weight has increased. When going into ruku, I will go before you, so you will find me when I raise my head from ruku, and before you, when I go into sajdah, so you will find me when I raise (my head) from sajdah."