Musannaf Ibn Abi Shayba 3:119

Yazid ibn Harun narrated to us, he said: Muhammad ibn ‘Amr informed us, from Abu Salamah, from Abu Hurayrah, that when he would pray for us, he would say the takbir every time he raised and lowered [himself]. And when he finished, he would say: "I am the most similar of you in prayer to the Messenger of Allah, may Allah bless him and grant him peace."