Musannaf Ibn Abi Shaybah 7347 — Those who said: follow the imam

Hittan bin Abdullah said: Sayyiduna Abu Musa (may Allah be pleased with him) led us in prayer. When he finished the prayer, he said: The Prophet (peace and blessings be upon him) addressed us and explained our religion to us and taught us our prayer. He said in it: "When the imam says the takbir, you say the takbir too, and when the imam bows, you bow too, for the imam bows before you and raises his head before you."