Yahya related to me from Malik from Ibn Shihab from Abu Salama
ibn Abdar-Rahman ibn Awf that Abu Hurayra used to lead them in prayer
and would say "Allah is greater" whenever he lowered himself and
raised himself. When he had finished he would say, "By Allah, I am the
person whose prayer most resembles the prayer of the Messenger of
Allah, may Allah bless him and grant him peace."
Muwatta Malik Book 3, Hadith 20