Muwatta Malik, Book 3, Hadith 166 (In-Book) ⓘ

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."

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، أَنَّ أَبَا هُرَيْرَةَ، كَانَ يُصَلِّي لَهُمْ فَيُكَبِّرُ كُلَّمَا خَفَضَ وَرَفَعَ فَإِذَا انْصَرَفَ قَالَ وَاللَّهِ إِنِّي لأَشْبَهُكُمْ بِصَلاَةِ رَسُولِ اللَّهِ صلى الله عليه وسلم ‏.‏