It is narrated from Sayyiduna Abu Malik al-Ash'ari (may Allah be pleased with him) that he said: "Come, let me show you how the Messenger of Allah (peace and blessings be upon him) used to pray." Then he stood and said the takbir when bowing and when prostrating, and when he rose from the sitting after two rak'ahs he said the takbir.
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3402