It is narrated from Abu Salamah bin Abd al-Rahman that Sayyiduna Abu Hurayrah (may Allah be pleased with him) led them in prayer. Every time he went down and every time he rose up he said 'Allahu akbar' (Allah is the Greatest). Then, when he had finished with the salam, he said: By Allah! Of all of you, my prayer is the most like the prayer of the Messenger of Allah (peace and blessings be upon him).
In the narration of Yahya, instead of 'fa-idha insarafa' (and when he finished) it is 'fa-lamma insarafa' (then when he finished).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2491